Category: Innovation

An eclipse seen from space

This is beautiful.

I have always been interested in the space flights of the astronaughts. I am sure that I join millions of others who feel the same.

So this article by Deana L. Weibel, Professor of Anthropology at Grand Valley State University is terrific.

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Seeing an eclipse from Earth is awe‑inspiring – for astronauts seeing one from space, the scene was even more grand

During a total solar eclipse, the Sun is barely visible behind the Moon. Roger Sorensen

Deana L. Weibel, Grand Valley State University

The astronauts on Artemis II’s trip to the Moon in April 2026 didn’t just have an amazing journey through space. They also saw something extraordinary. They were the first humans to see a total solar eclipse from space.

A solar eclipse happens when the Moon moves in front of the Sun. In a total eclipse, the Sun’s central disc is covered completely.

From Earth, the circle of the Sun is about the same size as the circle of the Moon. With the bright circle blocked, you can see the undulating rays of the Sun’s corona, or outer atmosphere, that are normally too dim to be observed.

Moon covering most, then all, then most of the Sun
Composite image of moments before, during and after totality. NASA/Aubrey Gemignani

I’m a cultural anthropologist who studies awe-inspiring aspects of space exploration. I have been lucky enough to have seen two total solar eclipses. The first one was in Nebraska in 2017, the second in Indiana in 2024.

During my second total eclipse, the period of totality – that short span when you can remove your protective glasses and look directly at the eclipse – lasted close to 4 minutes. I saw waves of diffuse light snaking around an ink-black hole in the sky. It looked very wrong – almost alien.

On Aug. 12, 2026, there will be another total solar eclipse, visible only from Greenland, Iceland, Spain and the Balearic Islands of the Mediterranean. Some fortunate viewers in Spain and nearby islands may see the eclipse just before sunset, low on the horizon. The Moon illusion, a phenomenon where the Moon looks bigger when it’s near the horizon, might make this eclipse look unusually large.

Unusual eclipse perspectives

Astronauts will occasionally also have less common eclipse experiences. I interviewed one I call by the pseudonym “Jackie” in my research about astronauts’ experiences of awe. She was part of an astronaut training group that did a flight exercise during a total solar eclipse.

Jackie and her squad flew their jets in the shadow of the Moon. This lengthened their time in totality because they could follow and stay within the shadow. Jackie was most impressed with how the Sun’s corona seemed to shift and ripple.

“It’s not static … it’s alive,” she told me.

On April 6, 2026, the astronauts of NASA’s Artemis II mission saw another kind of unusual eclipse as they flew around the Moon. At one point during their flight, the Moon and the spacecraft aligned so that the Moon was directly between them and the Sun, blocking the Sun’s disk in a way that looks very different from what we see on Earth.

Astronaut Victor Glover said it felt like they “just went sci-fi.” https://www.youtube.com/embed/YLjPci5bo1k?wmode=transparent&start=0 ‘An impressive sight’: The Artemis II crew were the first humans to observe a solar eclipse from near the Moon.

The astronauts were so close to the Moon that the Moon looked bigger than the Sun and hid more of its bright circle. Earth was also in view, and sunlight reflected from the Earth onto the Moon in a phenomenon NASA calls “earthshine.” This dim light is very similar to the moonlight that shines on the Earth at night.

Imagine the Sun hidden behind the Moon, creating a hazy halo around the Moon’s edges. At the same time, faint light reflected from Earth softly illuminates the Moon, revealing mountains and craters in a dim twilight. Now imagine this striking scene lasting 54 minutes.

This sight was, without a doubt, one of the most unusual eclipses ever seen by human eyes.

Although Artemis’ astronauts are trained to think scientifically, this experience propelled them into a state of awe. They talked openly about how their brains were “not processing” what they observed. While NASA kept them busy with a variety of tasks, the sound of emotion and excitement in their voices as they broadcast live from their lunar flyby was unmistakable.

An eclipse visible from space - the Moon is shown shadowed with some sunlight visible behind it, and part of the Orion capsule shown off to the left.
The Moon during a solar eclipse on April 6, 2026, photographed by one of the Orion spacecraft’s cameras during Artemis II. Earth is reflecting sunlight at the left edge of the Moon, called ‘earthshine.’ NASA

The psychology of awe

Researchers have studied the effects of awe on the human brain, including awe felt during solar eclipses. Moments of wonder like these can transform how you feel and even how you think, making you more thoughtful and open-minded.

In my own work I’ve found these experiences can change how astronauts understand their own place in the universe.

One astronaut said she gained an awareness of the fragility of our planet that now shapes everything she does, while another described becoming more curious after returning to Earth. A third said the awe he experienced in lunar orbit changed his understanding of time and infinity.

Space travel creates many opportunities for awe, but a solar eclipse from behind the Moon, as Mission Commander Reid Wiseman put it, required “20 new superlatives.”

It’s an experience most of the earthbound eclipse-chasers heading to Greenland or Iceland or Spain this summer will only dream about. Whether eclipses happen in space or on Earth, though, close encounters with the grandeur of our universe can make you feel profoundly human.

Deana L. Weibel, Professor of Anthropology, Grand Valley State University

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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In this difficuly world at present, this is a perfect article. As was written, “…. the awe he experienced in lunar orbit changed his understanding of time and infinity.“

Picture Parade Five Hundred and Twenty-One

More NASA images.

And what images.

NASA celebrates Hubble’s 36th anniversary with a new image of the Trifid Nebula, a star-forming region it first captured in 1997. The telescope leveraged almost its full operational lifetime to show us changes in the nebula on human time scales with an improved camera.
NASA, ESA, STScI; Image Processing: Joseph DePasquale (STScI)

There is more information on the NASA website.

Now a YouTube video.

What terrific images from Hubble.

Technology and ageing

This article hits home!

I find it is very hard to keep current on new technological developments. I am well past being young but still fascinated by science and technology.

Thus, it seemed like one that I should publish.

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Constant technology changes throw seniors a curve – and add to caregivers’ load

Shifting interfaces and frequent updates challenge elders and increase the burdens on people who try to help them. Maskot via Getty Images

Debaleena Chattopadhyay, University of Illinois Chicago

This past Christmas, I helped my parents choose a water filter. The latest “smart” models all came with a smartphone app that promised to monitor filter life, track water quality and automatically request service. Yet my father, age 75, and mother, 67, were quick to reject them in favor of a nondigital model.

“Every time it updates or I forget how to use it, we’ll have to call you,” my dad said.

As an only child living 8,000 miles (12,875 kilometers) away, I didn’t need convincing. My parents are aging in place and don’t need traditional caregiving – they cook, drive and manage their home just fine. Instead, I provide what I call technology caregiving: helping them with their digital activities of daily living, from online banking to booking theater tickets.

But as the tech industry shifts toward artificial intelligence agents and generative user interfaces – promising to make devices smarter than ever – I am bracing for this invisible workload to become heavier, not lighter. In addition to being a technology caregiver, I’m a computer scientist who studies human-computer interaction.

Technology caregiving

Technology caregiving is the act of helping someone use digital tools. While this isn’t entirely new – people have long helped grandparents program VCRs and connect parents’ desktop computers to the internet – the stakes have changed.

Today, digitization is ubiquitous. Helping with these tools is no longer just occasional unpaid tech support – it is a form of continuous caregiving essential for maintaining independence. For example, even the simple act of clipping coupons has gone digital – marginalizing older adults who are unable to navigate store apps to access these discounts.

People often view older adults as resistant to technology, but recent years – particularly since the COVID-19 pandemic – have shattered that myth. While gaps in internet access and device ownership remain, they are no longer major barriers to technology access.

an older woman uses a laptop computer at a table
Today’s seniors are not tech-averse, but constant updates and interface changes make using technology more difficult for them. Jose Luis Raota/Moment via Getty Images

The emerging crisis is not about access, but effective use. Many older adults are now online and willing to use these tools, but they require frequent help from family, friends or communities.

The innovation tax

The problem isn’t just that devices and apps are getting complex; it’s that they are constantly changing. Frequent software updates and shifting interfaces can be frustrating for all users, but they turn familiar tools into foreign concepts for older adults.

This unpredictability is about to accelerate. Take generative user interfaces, which designers can use to dynamically generate an interface in minutes. Pair them with AI agents, and the system can assume the designer’s role, taking independent actions based on how it perceives a user’s intent or need.

If the “Pay Bill” button is in a different place every third time you open a particular app because an AI decided to optimize the interface, you might feel perpetually incompetent if you can’t quickly locate it. While the industry calls this personalization, for an older adult it is a moving target.

This relentless pace of change – even when intended to be helpful – is directly at odds with age-related cognitive changes. And this dynamic is continuing with the new generation of seniors. They may be more eager to adopt new tools than the last, but wanting to use technology is not the same as being able to use it when the rules are constantly changing.

To navigate a brand new or shifting interface, your brain relies on fluid intelligence: the ability to reason, solve novel problems and ignore distractions on the fly. Unlike the knowledge that people accumulate over time, fluid intelligence naturally declines with age.

When an app updates or an AI optimizes a layout, it forces the user to discard their hard-won mental models and start over. For an older adult, this isn’t just a minor inconvenience; it is a taxing job for their working memory.

As an older adult participant in a study my colleagues and I conducted put it:

“I had a computer on my desk in 1980, OK, when nobody else did. So this is not a foreign language, but the changes that are made with little to no explanation and then things that you knew how to do have either changed or disappeared completely, that is the stuff that absolutely drives me, and I will tell you, every other older adult in America nuts.”

Help the helper

I believe that the way forward is to stop treating tech support as an afterthought and start designing for the technology caregiver. Digital literacy training for seniors and encouraging designing technologies for all users are important but not enough; it’s important to build tools that share the burden.

Two promising paths are emerging. First, cognitive accessibility features – like AI assistants that find buried buttons or provide real-time tech support – can offload tasks from the caregiver. Second, tools for caregivers are beginning to move beyond simply controlling device feature access to capabilities such as allowing authorized access for banking as co-users, or recording personalized instructions.

These tools will also need to be tailored: Family caregivers need different tools than community helpers like libraries and senior centers.

In the age of AI, innovation shouldn’t be a tax on the aging brain – it should help bridge the digital divide.

Debaleena Chattopadhyay, Assistant Professor of Computer Science, University of Illinois Chicago

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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I like the idea of having a technology caregiver. I like the idea very much.

Guiding your pup through New Homes and New Faces.

… and New Routines.

Busy dog owners juggling moves, new jobs, breakups, new babies, or a new roommate often notice something unsettling: a dog who once seemed “fine” starts acting differently. These life changes affecting pets can quietly reshape household dynamics, disrupting routines that help dogs feel safe and understood. When a familiar schedule shifts, pet emotional well-being can wobble, and routine disruption may show up as clinginess, restlessness, accidents, barking, withdrawal, or other behavioral changes in pets. Knowing that these reactions are often signals, not “bad behavior”, gives dog owners a clearer, kinder way to respond.

Why Routine Keeps Dogs Feeling Secure

Dogs build comfort from repeated patterns like meal times, walks, and who comes and goes. When those patterns change, many dogs feel unsure, and their bodies switch into “alert mode.” That stress can look like pacing, panting, whining, hiding, barking, extra licking, stomach upset, or sudden accidents.

This matters because a disrupted routine can shake a dog’s emotional stability, even if nothing “bad” is happening. When you read these shifts as stress signals, you can respond with support instead of frustration. That protects trust and often prevents small issues from becoming long-term habits.

Think of a dog’s day like a familiar map. If the map suddenly changes, your dog may try different behaviors to find safety again, including sticking close or acting jumpy. With this lens, simple strategies can restore calm during moves, new family members, or schedule changes.

Use These 8 Transition Tactics to Keep Your Dog Calm

Big changes can make even a confident dog feel wobbly, because the predictable patterns they rely on suddenly shift. These tactics keep the message consistent: “You’re safe, and I’ve got you,” even when everything else looks different.

  1. Protect the “non‐negotiables” schedule: Pick 2–3 anchors that stay steady no matter what, usually breakfast, one walk, and bedtime. Cornell’s Riney Canine Health Center recommends you schedule your dog’s meals and other daily needs so your dog can predict what’s coming. If your life is chaotic during a move or a new baby, keep those anchors consistent and let the “flex” stuff (like extra play) vary.
  2. Pack and unpack in “scent-safe” zones: During moving week, choose one room as your dog’s calm base camp. Set up a bed, water, and a worn T‐shirt that smells like you, and keep that room off-limits to loud packing whenever possible. On arrival, unpack your dog’s things first so the new space immediately includes familiar smells and routines.
  3. Teach a comfort cue before you need it: Pick one simple cue such as “mat” or “settle,” then practice for 1–2 minutes a few times a day when things are calm. Reward your dog for lying on a blanket or bed while you sit nearby, then gradually add tiny distractions (standing up, opening a drawer). When life changes, you’ll have a practiced “go relax here” skill instead of trying to invent calm in the moment.
  4. Introduce new people with sideways bodies and short wins: For visitors, roommates, or a new partner, ask the person to ignore your dog at first, no reaching, no hovering, no face-to-face staring. Have them toss treats past your dog so your dog can approach and retreat without pressure. Keep the first few meetings to 5–10 minutes, then take a break before your dog gets overwhelmed.
  5. Run “baby practice” or “new family member” rehearsals: If a baby or new pet is coming, rehearse the sounds and movements now. Play baby noises softly during meals, walk around holding a doll or bundled blanket, and reward calm behavior. This kind of prep matters because how much they must learn during major transitions is easy for humans to underestimate.
  6. Buffer work-schedule changes with a mini routine: If you’re leaving earlier or coming home later, shift by 10–15 minutes every couple of days rather than all at once when you can. Add a predictable “departure ritual” (quick potty, 2 minutes of gentle play, food puzzle) and a predictable “reunion ritual” (calm greeting, then outside). This prevents your comings and goings from feeling random, one of the biggest routine disruptors.
  7. Use environmental enrichment to drain stress, not hype it up: Stress often looks like restlessness, pacing, or clinginess, so give your dog a job that uses their brain and nose. Try scatter-feeding in a snuffle spot, a simple cardboard “find it” game, or a frozen food toy during the loudest parts of the day. Choose calming enrichment over high-arousal games when your dog is already on edge.
  8. Aim for “slightly easier than your dog can handle today”: When your dog is anxious, progress is tiny and steady: one step closer to the new stroller, one extra minute in the new yard, one calmer greeting. If your dog freezes, hides, or won’t take treats, the challenge is too big, back up and make it simpler. That gentle pacing helps your dog rebuild trust in their environment, which makes it much easier to keep a steady week of routines going.
  9. Habits That Build Security During Big Life Shifts
  10. When change is unavoidable, consistency becomes communication. These practices help you read your dog’s behavior with more empathy, reinforce trust through predictable patterns, and build emotional resilience a little at a time.
  11. Three-Pillar Daily Check
  12. ● What it is: Do a 60-second scan of physical wellness, cognitive wellness, and nervous system wellness.
  13. ●  How often: Daily
  14. ●  Why it helps: You catch stress early and meet needs before behavior escalates.Predictable Decompression Walk
  15. ●  What it is: Take a low-key sniff walk with no training goals and lots of choice.
  16. ●  How often: Daily
  17. ●  Why it helps: Sniffing releases tension and helps your dog feel oriented.Two-Minute Connection Rep
  18. ●  What it is: Do two minutes of gentle play, grooming, or hand-feeding with full attention.
  19. ●  How often: Daily
  20. ●  Why it helps: Micro-bonding reduces clinginess and builds confidence in you.One New Thing, Then Easy
  21. ●  What it is: Add one small novelty, then follow with a familiar, simple activity.
  22. ●  How often: 3 times weekly
  23. ●  Why it helps: Your dog learns change predicts safety, not overwhelm.Adjustment Notes Log
  24. ●  What it is: Track sleep, appetite, and triggers during the adjustment period.
  25. ●  How often: Weekly
  26. ●  Why it helps: Patterns guide smarter tweaks to your routine and environment.Common Questions About Dogs and Big Life ChangesQ: How can moving to a new home affect my dog’s emotional well-being and daily routine?
    A:     A move can unsettle your dog’s sense of safety, so you may see whining, pacing, or accidents while they learn the new map of home. Many dogs may adjust within a few weeks, especially with familiar feeding, potty, and walk times. Next steps: track what seems to trigger stress and tighten the routine around those moments.Q: What are effective strategies to help my dog adjust when our household dynamics change, such as welcoming a new baby?
    A:     Your dog may become clingy or reactive because attention, sounds, and scents suddenly change. Keep key rituals steady, add a calm “safe zone,” and reward relaxed behavior near baby related items at a distance your dog can handle. Track triggers like crying or visitors, then adjust the daily plan in tiny, repeatable steps.Q: In what ways do changes in my work schedule impact my dog’s stress levels and behavior?
  27. A: Shifts in your hours can raise uncertainty, which often shows up as barking, restlessness, or door watching. Set predictable alone time practice, use a consistent pre departure cue, and increase enrichment that does not rely on you being home. If problems cluster at certain times, log them and reorganize exercise, potty breaks, and quiet time around that pattern.
  28. Q: What signs indicate that my dog is struggling with transitions, and how can I support them?
  29. A: Look for appetite changes, sleep disruption, increased startle, hiding, sudden accidents, or new shadowing behavior. Support starts with ruling out pain or illness, then simplifying the environment and rewarding calm choices. Your best two moves are to track triggers for a week and revise the routine plan based on what your notes reveal.
  30. Q: If I feel overwhelmed balancing pet care with pursuing a new healthcare career path, what resources can help me manage both effectively?
  31. A: Feeling stretched is common, especially when you are building a new identity and schedule. Create a short, written care checklist for mornings and evenings, then ask a trusted friend, family member, or qualified pet professional to cover specific tasks during peak stress weeks. For your own transition, consider flexible, structured learning options like this resource and time blocking so your dog’s essentials stay steady while you grow.
  32. Make One Gentle Routine Shift to Help Your Dog Adjust
  33. Big life changes can leave dogs confused, clingy, or out of sorts, even when everything looks “fine” on the surface. The steadier path is empathetic pet care: notice what your dog is communicating, keep support predictable, and focus on proactive pet well-being rather than waiting for stress to spiral. Over time, supporting pets through change this way often means fewer meltdowns, faster settling, and a calmer home for everyone. When life shifts, your dog needs clarity and kindness more than perfection. Choose one strategy to start this week, and stick with it long enough to see your dog’s body and behavior soften. That steady care strengthens the human-animal bond and builds resilience for whatever comes next.

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This is a guest post from Penny Martin. It is very comprehensive, especially for dog owners who are very busy people

Picture Parade Five Hundred and Twelve

In honour of July 4th and America’s 250th birthday.

(And they were to be shown on the 22nd February but the snowy scenes took priority.)

These are photographs of Mount Rushmore Natioanl Memorial.

They have not be taken by me and hopefully the photographers who did take them will allow me to republish them,

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Gutzon Borglum was the principal sculptor at Mt Rushmore

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Impressive!

Gutzon Borglum did an incredible work of sculpture. Just amazing!

A further insight into the human brain

A recent article in The Conversation prompted this post.

The human brain is quite amazing. Actually I would extend that statement to include the brains of all ‘smart’ animals.

As more and more research is undertaken, the discoveries learned about the human brain are incredible. Take this story:

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Your brain can be trained, much like your muscles – a neurologist explains how to boost your brain health

Research shows that the brain can be exercised, much like our muscles. RapidEye/E+ via Getty Images

Joanna Fong-Isariyawongse, University of Pittsburgh

If you have ever lifted a weight, you know the routine: challenge the muscle, give it rest, feed it and repeat. Over time, it grows stronger.

Of course, muscles only grow when the challenge increases over time. Continually lifting the same weight the same way stops working.

It might come as a surprise to learn that the brain responds to training in much the same way as our muscles, even though most of us never think about it that way. Clear thinking, focus, creativity and good judgment are built through challenge, when the brain is asked to stretch beyond routine rather than run on autopilot. That slight mental discomfort is often the sign that the brain is actually being trained, a lot like that good workout burn in your muscles.

Think about walking the same loop through a local park every day. At first, your senses are alert. You notice the hills, the trees, the changing light. But after a few loops, your brain checks out. You start planning dinner, replaying emails or running through your to-do list. The walk still feels good, but your brain is no longer being challenged.

Routine feels comfortable, but comfort and familiarity alone do not build new brain connections.

As a neurologist who studies brain activity, I use electroencephalograms, or EEGs, to record the brain’s electrical patterns.

Research in humans shows that these rhythms are remarkably dynamic. When someone learns a new skill, EEG rhythms often become more organized and coordinated. This reflects the brain’s attempt to strengthen pathways needed for that skill.

Your brain trains in zones too

For decades, scientists believed that the brain’s ability to grow and reorganize, called neuroplasticity, was largely limited to childhood. Once the brain matured, its wiring was thought to be largely fixed.

But that idea has been overturned. Decades of research show that adult brains can form new connections and reorganize existing networks, under the right conditions, throughout life.

Some of the most influential work in this field comes from enriched environment studies in animals. Rats housed in stimulating environments filled with toys, running wheels and social interaction developed larger, more complex brains than rats kept in standard cages. Their brains adapted because they were regularly exposed to novelty and challenge.

Human studies find similar results. Adults who take on genuinely new challenges, such as learning a language, dancing or practicing a musical instrument, show measurable increases in brain volume and connectivity on MRI scans.

The takeaway is simple: Repetition keeps the brain running, but novelty pushes the brain to adapt, forcing it to pay attention, learn and problem-solve in new ways. Neuroplasticity thrives when the brain is nudged just beyond its comfort zone.

Older women knitting together and socializing in a community space.
Tasks that stretch your brain just beyond its comfort zone, such as knitting and crocheting, can improve cognitive abilities over your lifespan – and doing them in a group setting brings an additional bonus for overall health. Dougal Waters/DigitalVision via Getty Images

The reality of neural fatigue

Just like muscles, the brain has limits. It does not get stronger from endless strain. Real growth comes from the right balance of challenge and recovery.

When the brain is pushed for too long without a break – whether that means long work hours, staying locked onto the same task or making nonstop decisions under pressure – performance starts to slip. Focus fades. Mistakes increase. To keep you going, the brain shifts how different regions work together, asking some areas to carry more of the load. But that extra effort can still make the whole network run less smoothly.

Neural fatigue is more than feeling tired. Brain imaging studies show that during prolonged mental work, the networks responsible for attention and decision-making begin to slow down, while regions that promote rest and reward-seeking take over. This shift helps explain why mental exhaustion often comes with stronger cravings for quick rewards, like sugary snacks, comfort foods or mindless scrolling. The result is familiar: slower thinking, more mistakes, irritability and mental fog.

This is where the muscle analogy becomes especially useful. You wouldn’t do squats for six hours straight, because your leg muscles would eventually give out. As they work, they build up byproducts that make each contraction a little less effective until you finally have to stop. Your brain behaves in a similar way.

Likewise, in the brain, when the same cognitive circuits are overused, chemical signals build up, communication slows and learning stalls.

But rest allows those strained circuits to reset and function more smoothly over time. And taking breaks from a taxing activity does not interrupt learning. In fact, breaks are critical for efficient learning.

Middle-aged woman sitting near her computer, rubbing her neck.
Overdoing any task, whether it be weight training or sitting at the computer for too long, can overtax the muscles as well as the brain. Halfpoint Images/Moment via Getty Images

The crucial importance of rest

Among all forms of rest, sleep is the most powerful.

Sleep is the brain’s night shift. While you rest, the brain takes out the trash through a special cleanup system called the glymphatic system that clears away waste and harmful proteins. Sleep also restores glycogen, a critical fuel source for brain cells.

And importantly, sleep is when essential repair work happens. Growth hormone surges during deep sleep, supporting tissue repair. Immune cells regroup and strengthen their activity.

During REM sleep, the stage of sleep linked to dreaming, the brain replays patterns from the day to consolidate memories. This process is critical not only for cognitive skills like learning an instrument but also for physical skills like mastering a move in sports.

On the other hand, chronic sleep deprivation impairs attention, disrupts decision-making and alters the hormones that regulate appetite and metabolism. This is why fatigue drives sugar cravings and late-night snacking.

Sleep is not an optional wellness practice. It is a biological requirement for brain performance.

Exercise feeds the brain too

Exercise strengthens the brain as well as the body.

Physical activity increases levels of brain-derived neurotrophic factor, or BDNF, a protein that acts like fertilizer for neurons. It promotes the growth of new connections, increases blood flow, reduces inflammation and helps the brain remain adaptable across one’s lifespan.

This is why exercise is one of the strongest lifestyle tools for protecting cognitive health.

Train, recover, repeat

The most important lesson from this science is simple. Your brain is not passively wearing down with age. It is constantly remodeling itself in response to how you use it. Every new challenge and skill you try, every real break, every good night of sleep sends a signal that growth is still expected.

You do not need expensive brain training programs or radical lifestyle changes. Small, consistent habits matter more. Try something unfamiliar. Vary your routines. Take breaks before exhaustion sets in. Move your body. Treat sleep as nonnegotiable.

So the next time you lace up your shoes for a familiar walk, consider taking a different path. The scenery may change only slightly, but your brain will notice. That small detour is often all it takes to turn routine into training.

The brain stays adaptable throughout life. Cognitive resilience is not fixed at birth or locked in early adulthood. It is something you can shape.

If you want a sharper, more creative, more resilient brain, you do not need to wait for a breakthrough drug or a perfect moment. You can start now, with choices that tell your brain that growth is still the plan.

Joanna Fong-Isariyawongse, Associate Professor of Neurology, University of Pittsburgh

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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That last section of the article is most powerful. I’m speaking of the section that is headed Train, recover, repeat.

The human brain notices when even small changes to our normal routine occur. Also that exercise strengthens the brain plus our brains stay adaptable throughout our lives. Amazing!

Other stars, other worlds.

The science of looking at other worlds is amazing.

With so much going wrong, primarily politically, in the world, I just love turning to news about distant places; and by distant I mean hugely so. That is why I am republishing this item from The Conversation about other stars.

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NASA’s Pandora telescope will study stars in detail to learn about the exoplanets orbiting them

A new NASA mission will study exoplanets around distant stars. European Space Agency, CC BY-SA

Daniel Apai, University of Arizona

On Jan. 11, 2026, I watched anxiously at the tightly controlled Vandenberg Space Force Base in California as an awe-inspiring SpaceX Falcon 9 rocket carried NASA’s new exoplanet telescope, Pandora, into orbit.

Exoplanets are worlds that orbit other stars. They are very difficult to observe because – seen from Earth – they appear as extremely faint dots right next to their host stars, which are millions to billions of times brighter and drown out the light reflected by the planets. The Pandora telescope will join and complement NASA’s James Webb Space Telescope in studying these faraway planets and the stars they orbit.

I am an astronomy professor at the University of Arizona who specializes in studies of planets around other stars and astrobiology. I am a co-investigator of Pandora and leading its exoplanet science working group. We built Pandora to shatter a barrier – to understand and remove a source of noise in the data – that limits our ability to study small exoplanets in detail and search for life on them.

Observing exoplanets

Astronomers have a trick to study exoplanet atmospheres. By observing the planets as they orbit in front of their host stars, we can study starlight that filters through their atmospheres.

These planetary transit observations are similar to holding a glass of red wine up to a candle: The light filtering through will show fine details that reveal the quality of the wine. By analyzing starlight filtered through the planets’ atmospheres, astronomers can find evidence for water vapor, hydrogen, clouds and even search for evidence of life. Researchers improved transit observations in 2002, opening an exciting window to new worlds.

When a planet passes in front of its star, astronomers can measure the dip in brightness, and see how the light filtering through the planet’s atmosphere changes.

For a while, it seemed to work perfectly. But, starting from 2007, astronomers noted that starspots – cooler, active regions on the stars – may disturb the transit measurements.

In 2018 and 2019, then-Ph.D. student Benjamin V. Rackham, astrophysicist Mark Giampapa and I published a series of studies showing how darker starspots and brighter, magnetically active stellar regions can seriously mislead exoplanets measurements. We dubbed this problem “the transit light source effect.”

Most stars are spotted, active and change continuously. Ben, Mark and I showed that these changes alter the signals from exoplanets. To make things worse, some stars also have water vapor in their upper layers – often more prominent in starspots than outside of them. That and other gases can confuse astronomers, who may think that they found water vapor in the planet.

In our papers – published three years before the 2021 launch of the James Webb Space Telescope – we predicted that the Webb cannot reach its full potential. We sounded the alarm bell. Astronomers realized that we were trying to judge our wine in light of flickering, unstable candles.

The birth of Pandora

For me, Pandora began with an intriguing email from NASA in 2018. Two prominent scientists from NASA’s Goddard Space Flight Center, Elisa Quintana and Tom Barclay, asked to chat. They had an unusual plan: They wanted to build a space telescope very quickly to help tackle stellar contamination – in time to assist Webb. This was an exciting idea, but also very challenging. Space telescopes are very complex, and not something that you would normally want to put together in a rush.

The Pandora spacecraft with an exoplanet and two stars in the background
Artist’s concept of NASA’s Pandora Space Telescope. NASA’s Goddard Space Flight Center/Conceptual Image Lab, CC BY

Pandora breaks with NASA’s conventional model. We proposed and built Pandora faster and at a significantly lower cost than is typical for NASA missions. Our approach meant keeping the mission simple and accepting somewhat higher risks.

What makes Pandora special?

Pandora is smaller and cannot collect as much light as its bigger brother Webb. But Pandora will do what Webb cannot: It will be able to patiently observe stars to understand how their complex atmospheres change.

By staring at a star for 24 hours with visible and infrared cameras, it will measure subtle changes in the star’s brightness and colors. When active regions in the star rotate in and out of view, and starspots form, evolve and dissipate, Pandora will record them. While Webb very rarely returns to the same planet in the same instrument configuration and almost never monitors their host stars, Pandora will revisit its target stars 10 times over a year, spending over 200 hours on each of them. https://www.youtube.com/embed/Inxe5Bgarj0?wmode=transparent&start=0 NASA’s Pandora mission will revolutionize the study of exoplanet atmospheres.

With that information, our Pandora team will be able to figure out how the changes in the stars affect the observed planetary transits. Like Webb, Pandora will observe the planetary transit events, too. By combining data from Pandora and Webb, our team will be able to understand what exoplanet atmospheres are made of in more detail than ever before.

After the successful launch, Pandora is now circling Earth about every 90 minutes. Pandora’s systems and functions are now being tested thoroughly by Blue Canyon Technologies, Pandora’s primary builder.

About a week after launch, control of the spacecraft will transition to the University of Arizona’s Multi-Mission Operation Center in Tucson, Arizona. Then the work of our science teams begins in earnest and we will begin capturing starlight filtered through the atmospheres of other worlds – and see them with a new, steady eye.

Daniel Apai, Associate Dean for Research and Professor of Astronomy and Planetary Sciences, University of Arizona

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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It may not be for everyone but for me I find this news from NASA incredible. Well done The Conversation for publishing this article.

The downside of technology

A recent article in The Conversation prompted today’s post.

More and more I get concerned at some of the ways we are going.

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Deepfakes leveled up in 2025 – here’s what’s coming next

AI image and video generators now produce fully lifelike content. AI-generated image by Siwei Lyu using Google Gemini 3

Siwei Lyu, University at Buffalo

Over the course of 2025, deepfakes improved dramatically. AI-generated faces, voices and full-body performances that mimic real people increased in quality far beyond what even many experts expected would be the case just a few years ago. They were also increasingly used to deceive people.

For many everyday scenarios — especially low-resolution video calls and media shared on social media platforms — their realism is now high enough to reliably fool nonexpert viewers. In practical terms, synthetic media have become indistinguishable from authentic recordings for ordinary people and, in some cases, even for institutions.

And this surge is not limited to quality. The volume of deepfakes has grown explosively: Cybersecurity firm DeepStrike estimates an increase from roughly 500,000 online deepfakes in 2023 to about 8 million in 2025, with annual growth nearing 900%.

I’m a computer scientist who researches deepfakes and other synthetic media. From my vantage point, I see that the situation is likely to get worse in 2026 as deepfakes become synthetic performers capable of reacting to people in real time.

Dramatic improvements

Several technical shifts underlie this dramatic escalation. First, video realism made a significant leap thanks to video generation models designed specifically to maintain temporal consistency. These models produce videos that have coherent motion, consistent identities of the people portrayed, and content that makes sense from one frame to the next. The models disentangle the information related to representing a person’s identity from the information about motion so that the same motion can be mapped to different identities, or the same identity can have multiple types of motions.

These models produce stable, coherent faces without the flicker, warping or structural distortions around the eyes and jawline that once served as reliable forensic evidence of deepfakes.

Second, voice cloning has crossed what I would call the “indistinguishable threshold.” A few seconds of audio now suffice to generate a convincing clone – complete with natural intonation, rhythm, emphasis, emotion, pauses and breathing noise. This capability is already fueling large-scale fraud. Some major retailers report receiving over 1,000 AI-generated scam calls per day. The perceptual tells that once gave away synthetic voices have largely disappeared.

Third, consumer tools have pushed the technical barrier almost to zero. Upgrades from OpenAI’s Sora 2 and Google’s Veo 3 and a wave of startups mean that anyone can describe an idea, let a large language model such as OpenAI’s ChatGPT or Google’s Gemini draft a script, and generate polished audio-visual media in minutes. AI agents can automate the entire process. The capacity to generate coherent, storyline-driven deepfakes at a large scale has effectively been democratized.

This combination of surging quantity and personas that are nearly indistinguishable from real humans creates serious challenges for detecting deepfakes, especially in a media environment where people’s attention is fragmented and content moves faster than it can be verified. There has already been real-world harm – from misinformation to targeted harassment and financial scams – enabled by deepfakes that spread before people have a chance to realize what’s happening. https://www.youtube.com/embed/syNN38cu3Vw?wmode=transparent&start=0 AI researcher Hany Farid explains how deepfakes work and how good they’re getting.

The future is real time

Looking forward, the trajectory for next year is clear: Deepfakes are moving toward real-time synthesis that can produce videos that closely resemble the nuances of a human’s appearance, making it easier for them to evade detection systems. The frontier is shifting from static visual realism to temporal and behavioral coherence: models that generate live or near-live content rather than pre-rendered clips.

Identity modeling is converging into unified systems that capture not just how a person looks, but how they move, sound and speak across contexts. The result goes beyond “this resembles person X,” to “this behaves like person X over time.” I expect entire video-call participants to be synthesized in real time; interactive AI-driven actors whose faces, voices and mannerisms adapt instantly to a prompt; and scammers deploying responsive avatars rather than fixed videos.

As these capabilities mature, the perceptual gap between synthetic and authentic human media will continue to narrow. The meaningful line of defense will shift away from human judgment. Instead, it will depend on infrastructure-level protections. These include secure provenance such as media signed cryptographically, and AI content tools that use the Coalition for Content Provenance and Authenticity specifications. It will also depend on multimodal forensic tools such as my lab’s Deepfake-o-Meter.

Simply looking harder at pixels will no longer be adequate.

Siwei Lyu, Professor of Computer Science and Engineering; Director, UB Media Forensic Lab, University at Buffalo

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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I hope with all my heart that lines of defense will rise to the challenge.

Found on Easter Island

Amazing what science can find out.

But while the science is brilliant the social implications are not so good. Read on!

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A billion-dollar drug was found in Easter Island soil – what scientists and companies owe the Indigenous people they studied

The Rapa Nui people are mostly invisible in the origin story of rapamycin. Posnov/Moment via Getty Images

Ted Powers, University of California, Davis

An antibiotic discovered on Easter Island in 1964 sparked a billion-dollar pharmaceutical success story. Yet the history told about this “miracle drug” has completely left out the people and politics that made its discovery possible.

Named after the island’s Indigenous name, Rapa Nui, the drug rapamycin was initially developed as an immunosuppressant to prevent organ transplant rejection and to improve the efficacy of stents to treat coronary artery disease. Its use has since expanded to treat various types of cancer, and researchers are currently exploring its potential to treat diabetes, neurodegenerative diseases and even aging. Indeed, studies raising rapamycin’s promise to extend lifespan or combat age-related diseases seem to be published almost daily. A PubMed search reveals over 59,000 journal articles that mention rapamycin, making it one of the most talked-about drugs in medicine.

Connected hexagonal structures
Chemical structure of rapamycin. Fvasconcellos/Wikimedia Commons

At the heart of rapamycin’s power lies its ability to inhibit a protein called the target of rapamycin kinase, or TOR. This protein acts as a master regulator of cell growth and metabolism. Together with other partner proteins, TOR controls how cells respond to nutrients, stress and environmental signals, thereby influencing major processes such as protein synthesis and immune function. Given its central role in these fundamental cellular activities, it is not surprising that cancer, metabolic disorders and age-related diseases are linked to the malfunction of TOR.

Despite being so ubiquitous in science and medicine, how rapamycin was discovered has remained largely unknown to the public. Many in the field are aware that scientists from the pharmaceutical company Ayerst Research Laboratories isolated the molecule from a soil sample containing the bacterium Streptomyces hydroscopicus in the mid-1970s. What is less well known is that this soil sample was collected as part of a Canadian-led mission to Rapa Nui in 1964, called the Medical Expedition to Easter Island, or METEI.

As a scientist who built my career around the effects of rapamycin on cells, I felt compelled to understand and share the human story underlying its origin. Learning about historian Jacalyn Duffin’s work on METEI completely changed how I and many of my colleagues view our own field.

Unearthing rapamycin’s complex legacy raises important questions about systemic bias in biomedical research and what pharmaceutical companies owe to the Indigenous lands from which they mine their blockbuster discoveries.

History of METEI

The Medical Expedition to Easter Island was the brainchild of a Canadian team comprised of surgeon Stanley Skoryna and bacteriologist Georges Nogrady. Their goal was to study how an isolated population adapted to environmental stress, and they believed the planned construction of an international airport on Easter Island offered a unique opportunity. They presumed that the airport would result in increased outside contact with the island’s population, resulting in changes in their health and wellness.

With funding from the World Health Organization and logistical support from the Royal Canadian Navy, METEI arrived in Rapa Nui in December 1964. Over the course of three months, the team conducted medical examinations on nearly all 1,000 island inhabitants, collecting biological samples and systematically surveying the island’s flora and fauna.

It was as part of these efforts that Nogrady gathered over 200 soil samples, one of which ended up containing the rapamycin-producing Streptomyces strain of bacteria.

Poster of the word METEI written vertically between the back of two moai heads, with the inscription '1964-1965 RAPA NUI INA KA HOA (Don't give up the ship)'
METEI logo. Georges Nogrady, CC BY-NC-ND

It’s important to realize that the expedition’s primary objective was to study the Rapa Nui people as a sort of living laboratory. They encouraged participation through bribery by offering gifts, food and supplies, and through coercion by enlisting a long-serving Franciscan priest on the island to aid in recruitment. While the researchers’ intentions may have been honorable, it is nevertheless an example of scientific colonialism, where a team of white investigators choose to study a group of predominantly nonwhite subjects without their input, resulting in a power imbalance.

There was an inherent bias in the inception of METEI. For one, the researchers assumed the Rapa Nui had been relatively isolated from the rest of the world when there was in fact a long history of interactions with countries outside the island, beginning with reports from the early 1700s through the late 1800s.

METEI also assumed that the Rapa Nui were genetically homogeneous, ignoring the island’s complex history of migration, slavery and disease. For example, the modern population of Rapa Nui are mixed race, from both Polynesian and South American ancestors. The population also included survivors of the African slave trade who were returned to the island and brought with them diseases, including smallpox.

This miscalculation undermined one of METEI’s key research goals: to assess how genetics affect disease risk. While the team published a number of studies describing the different fauna associated with the Rapa Nui, their inability to develop a baseline is likely one reason why there was no follow-up study following the completion of the airport on Easter Island in 1967.

Giving credit where it is due

Omissions in the origin stories of rapamycin reflect common ethical blind spots in how scientific discoveries are remembered.

Georges Nogrady carried soil samples back from Rapa Nui, one of which eventually reached Ayerst Research Laboratories. There, Surendra Sehgal and his team isolated what was named rapamycin, ultimately bringing it to market in the late 1990s as the immunosuppressant Rapamune. While Sehgal’s persistence was key in keeping the project alive through corporate upheavals – going as far as to stash a culture at home – neither Nogrady nor the METEI was ever credited in his landmark publications.

Although rapamycin has generated billions of dollars in revenue, the Rapa Nui people have received no financial benefit to date. This raises questions about Indigenous rights and biopiracy, which is the commercialization of Indigenous knowledge.

Agreements like the United Nations’s 1992 Convention on Biological Diversity and the 2007 Declaration on the Rights of Indigenous Peoples aim to protect Indigenous claims to biological resources by encouraging countries to obtain consent and input from Indigenous people and provide redress for potential harms before starting projects. However, these principles were not in place during METEI’s time.

Close-up headshots of row of people wearing floral headdresses in a dim room
The Rapa Nui have received little to no acknowledgment for their role in the discovery of rapamycin. Esteban Felix/AP Photo

Some argue that because the bacteria that produces rapamycin has since been found in other locations, Easter Island’s soil was not uniquely essential to the drug’s discovery. Moreover, because the islanders did not use rapamycin or even know about its presence on the island, some have countered that it is not a resource that can be “stolen.”

However, the discovery of rapamycin on Rapa Nui set the foundation for all subsequent research and commercialization around the molecule, and this only happened because the people were the subjects of study. Formally recognizing and educating the public about the essential role the Rapa Nui played in the eventual discovery of rapamycin is key to compensating them for their contributions.

In recent years, the broader pharmaceutical industry has begun to recognize the importance of fair compensation for Indigenous contributions. Some companies have pledged to reinvest in communities where valuable natural products are sourced. However, for the Rapa Nui, pharmaceutical companies that have directly profited from rapamycin have not yet made such an acknowledgment.

Ultimately, METEI is a story of both scientific triumph and social ambiguities. While the discovery of rapamycin has transformed medicine, the expedition’s impact on the Rapa Nui people is more complicated. I believe issues of biomedical consent, scientific colonialism and overlooked contributions highlight the need for a more critical examination and awareness of the legacy of breakthrough scientific discoveries.

Ted Powers, Professor of Molecular and Cellular Biology, University of California, Davis

This article is republished from The Conversation under a Creative Commons license. Read the original article.

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Ted Powers explains in the last paragraph: “Ultimately, METEI is a story of both scientific triumph and social ambiguities.” Then goes on to say: “I believe issues of biomedical consent, scientific colonialism and overlooked contributions highlight the need for a more critical examination and awareness of the legacy of breakthrough scientific discoveries.”

If only it was simple!