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Science

Kids who eat more ultra-processed foods show a troubling brain response

A new study suggests that ultra-processed foods may influence children's developing brains in ways that encourage weight gain. Researchers from USC studied 46 children ages 7 to 10 and found that those who ate more ultra-processed foods showed stronger activity in the brain's reward system when viewing tempting foods like cookies and French fries. These heightened brain responses were linked to greater increases in body fat and body mass index (BMI) one year later, suggesting that the brain's sensitivity to food cues may help explain why ultra-processed diets are associated with obesity.

A hidden star is plowing through Betelgeuse’s atmosphere, new evidence suggests

Something mysterious is disturbing Betelgeuse, and astronomers believe they have identified the culprit: a hidden companion star called Siwarha. New radio observations reveal that the smaller star may be plowing through Betelgeuse’s enormous atmosphere, creating disturbances that subtly stretch and distort the red supergiant’s shape.

Astronaut and Earth

CSA (Canadian Space Agency) astronaut Joshua Kutryk is pictured during the Oct. 29, 2026, spacewalk. The International Space Station was soaring 267 miles above the South Atlantic Ocean at the time of this photograph. Kutryk and NASA astronaut Anil Menon installed a new roll-out solar array on the space station and performed some get-ahead work […]

NASA Astronaut, STEM Creator Connect with Students for STEM Day

Students across the country will have the opportunity to connect directly with the International Space Station during a live, interactive in-flight call with NASA astronaut Anil Menon and Mark Rober STEM content creator and founder of ClassCrunchLabs Foundation. The event, hosted by NASA’s Office of STEM Engagement, celebrates National STEM Day by bringing real‑world science, […]

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TB 26-10 Printed Circuit Board Assembly Chip Resistor Body Cracking

For more information, contact Joel W. Sills, Langley Research Center, joel.w.sills@nasa.gov. Download PDF here Chip resistors are widely used in NASA projects, yet cases of alumina substrate cracking during environmental testing are rare. Two instances of thick-film chip resistor cracking were observed during thermal cycling after vibration, with fractures occurring across the short axis due […]

All 5 genetic “letters” of DNA and RNA discovered in a 4.5-billion-year-old asteroid

Scientists have discovered all five essential nucleobases used in DNA and RNA in pristine samples from asteroid Ryugu, revealing that key ingredients for life existed in space billions of years ago. The remarkable finding adds to growing evidence from other asteroids and meteorites that these molecules were widespread throughout the early Solar System.

Scientists discover a surprising clue to autism's origins hidden in the placenta

Scientists have uncovered an unexpected connection between inflammation during pregnancy, placental damage, and autism-like traits in male mice, while females appeared naturally protected. The discovery could help explain why autism is diagnosed more frequently in boys and reveal new opportunities for early intervention.

The brain’s hidden fear mechanism may explain anxiety and PTSD

A surprising new discovery suggests that fear may cause the brain to blur the line between danger and safety rather than distinguish them more clearly. By observing brain activity in mice using augmented reality, scientists found that memories of threatening and harmless environments began to overlap, potentially allowing faster responses to danger. This "better safe than sorry" survival mechanism could help explain why people with anxiety or PTSD sometimes experience intense fear in completely safe situations.

A 50-year-old mystery of vanishing frogs reveals a hidden killer

A nearly 50-year-old mystery involving disappearing frogs in Brazil may finally be solved, with scientists uncovering evidence that a deadly fungus swept through the region and devastated vulnerable species. Remarkably, many frog populations have since rebounded, suggesting they developed greater tolerance to the disease that once threatened their survival.

Scientists identify two overlooked skills that predict reading success

A massive new study reveals that intelligence plays a surprisingly limited role in children's reading success, while visual processing showed no meaningful connection at all. Instead, the strongest predictors are sound recognition, vocabulary, and background knowledge, offering new clues about how to help struggling readers.

NASA’s Voyager 1 is about to reach a historic one-light-day milestone

NASA’s Voyager 1 is approaching an extraordinary milestone nearly 50 years after its launch, even as engineers battle dwindling power and mysterious technical problems. A clever energy-saving maneuver has extended the spacecraft’s scientific mission, while an unexplained 48-hour communications blackout recently gave NASA a scare. On November 18, Voyager 1 will reach a distance of one light-day from Earth, making even the simplest round-trip communication take 48 hours.

NASA smashed into an asteroid. Now Hera is closing in to see what happened

Europe’s Hera spacecraft has captured its first clear view of two asteroids involved in NASA’s historic 2022 experiment to redirect a potentially dangerous space rock. Now approaching the pair, Hera will investigate the mysterious aftermath of the collision and uncover why the asteroid shifted far more than scientists predicted.

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The Pacific’s Busy Storm Season

Super Typhoon In-fa developed an unusually large eye, and the remnants of Typhoon Champi transitioned into an extratropical storm that targeted Alaska.

APOD: 2026 November 3 – Comet PanSTARRs and Rainbow Meteor

APOD Science APOD APOD: 2026 November 3 –… Today’s APOD Archive Submissions Index Search Calendar RSS Education About Discuss APOD Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. Comet PanSTARRs and […]

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