Science Daily

A major Alzheimer’s risk gene may shrink brain cells years before symptoms

Researchers have uncovered a possible reason why the Alzheimer’s risk gene APOE4 can disrupt the brain long before memory problems begin. In mice, APOE4 increased a protein called Nell2, shrinking neurons and making memory circuits unusually active. That early hyperactivity predicted worse memory later in life. Reducing Nell2 in adult mice reversed the abnormal changes, raising hopes for a new way to intervene before Alzheimer’s progresses.

science  Aug 23, 2026

Science Daily

Scientists left this farm field alone. Thousands of orchids appeared

An abandoned farm field became a flourishing wildflower meadow within little more than a decade, with plant diversity doubling and thousands of orchids appearing naturally. The discovery suggests that simply giving nature time to recover could be a powerful and inexpensive tool for restoring biodiversity.

science  Aug 23, 2026

Science Daily

The dental crown of the future could be 3D-printed while you wait

Researchers have found a way to slash the processing time for 3D-printed zirconia crowns from as much as 100 hours to under 30 minutes. The advance could eventually let dentists print strong, customized permanent crowns for patients within a single appointment.

science  Aug 23, 2026

Science Daily

Physicists create a tiny “Big Bang” with surprisingly small atomic nuclei

Researchers at CERN have created microscopic versions of the early Universe by colliding surprisingly small atomic nuclei at nearly the speed of light. The collisions produced quark-gluon plasma, the ultra-hot matter believed to have filled the cosmos shortly after the Big Bang. Even more intriguingly, the particles left behind reveal the shape of the nuclei that created them, offering a new way to probe both nuclear physics and the Universe’s earliest moments.

science  Aug 23, 2026

Science Daily

A hidden “on switch” in human DNA has finally been decoded

Researchers have used AI to uncover the DNA signature of a key genetic “switch” involved in turning genes on. After analyzing about 500,000 DNA sequences, the model identified the initiator in roughly 60% of human genes. The breakthrough could help predict the effects of harmful mutations and eventually contribute to decoding the broader genetic instructions that control gene activity throughout the body.

science  Aug 23, 2026

Science Daily

Experimental compound helps burn fat without muscle loss

A decades-old compound may point to a new way of treating obesity by making the body burn more energy rather than simply reducing appetite. In mice, TOFA increased energy use by as much as 18%, reduced body fat without significant muscle loss, and improved blood sugar, triglycerides, and fatty liver disease. It also produced stronger results when combined with GLP-1 drugs such as Ozempic, Wegovy, Mounjaro, and Zepbound.

science  Aug 23, 2026

The Guardian Science

Artemis II crew to receive top US space medal for historic lunar journey

Reid Wiseman, Victor Glover, Christina Koch and Jeremy Hansen broke record for farthest distance traveled from EarthThe crew of the historic Artemis II lunar flyby mission have earned the US’s top space medal, officials have announced.Cmdr Reid Wiseman, pilot Victor Glover, and mission specialists Christina Koch and Jeremy Hansen are set to receive the Congressional Space Medal of Honor on 28 August, the US space agency Nasa said. Continue reading...

science  Aug 23, 2026

NASA News

Curiosity Blog, Sols 4982–4987: Back to Our Regularly Scheduled Programming

By Allison Dries-Padilla, Missions Operations Specialist at Malin Space Science Systems Earth planning date: Friday, Aug. 14, 2026 This week of Curiosity Mars rover operations takes us back to our “regularly scheduled programming.” After taking a slight detour to investigate the “erosional surface” we are back on course to ascend Mount Sharp. As we transition […]

science  Aug 23, 2026

Science Daily

Scientists turn tiny “defects” into a 5.5x heat transfer boost

Scientists have developed an ultrathin coating that could dramatically improve how efficiently heat is transferred during condensation. By turning tiny polymer structures once considered “defects” into places where water droplets can form, then helping those droplets detach quickly, the new surface keeps exposing fresh areas for condensation. In tests on copper tubes, it transferred heat up to 5.5 times more effectively than conventional copper and more than 50% better than a standard water-repe

science  Aug 23, 2026

Science Daily

Cannabis use linked to 37% higher stroke risk in massive study

A massive analysis involving more than 100 million people has found strong links between recreational drug use and stroke, including among younger adults. Cocaine was associated with nearly double the risk of stroke, amphetamines with more than double the risk, and cannabis with a 37% increase.

science  Aug 23, 2026

Science Daily

This common vitamin was linked to 13% better cognitive scores

Older adults with mild cognitive impairment and sleep problems who took at least 5,000 IU of vitamin D daily scored more than 13% higher on a cognitive test than those taking none. The preliminary findings suggest vitamin D could be worth studying as a potentially modifiable factor during an early window of cognitive decline.

science  Aug 23, 2026

Science Daily

Black holes keep tearing these stars apart, but they survive

Astronomers have found stars that repeatedly skim past supermassive black holes, surviving each encounter while producing a new burst of light. In some systems, those flares mysteriously fade with every return. Researchers now think the key may be stars that were already spinning extremely fast before being captured. That rapid rotation could explain both the fading flares and how the stars ended up in such extraordinarily tight black hole orbits.

science  Aug 23, 2026

Science Daily

This shark can live 400 years. Its eyes barely seem to age

Greenland sharks may live for 400 years without suffering the kind of retinal decline normally associated with aging. Researchers found healthy eye tissue and active proteins specially adapted for seeing blue light in the dim Arctic depths. DNA repair mechanisms may help keep their eyes functioning across centuries. The discovery could eventually offer new clues for protecting human vision as we age.

science  Aug 23, 2026

Science Daily

Quitting alcohol may prime the brain for relapse

Mice that developed compulsive drinking after alcohol abstinence showed more than double the activity in a brain region associated with stress and addiction. Because the signal appeared before they drank again, researchers think it could eventually help predict who is most at risk of relapse.

science  Aug 23, 2026

Science Daily

Peppermint oil lowers blood pressure in just 20 days

Peppermint oil may have an unexpected benefit for people with mildly high blood pressure. Adults who took a small dose twice daily for 20 days saw their systolic blood pressure fall by an average of 8.5 mmHg, while a placebo group showed little change. Researchers say the inexpensive oil could eventually provide a simple additional option for managing elevated blood pressure.

science  Aug 22, 2026

Science Daily

Exercise may work better for keeping weight off than losing it

Exercise may not be a powerful weight-loss tool on its own, but it appears to play a much bigger role in preventing lost weight from returning. By preserving muscle, supporting metabolism, improving fat burning, and regulating appetite and blood sugar, regular activity can make long-term weight maintenance easier.

science  Aug 22, 2026

Science Daily

Multilingual people may have brains up to 13 years younger

People who speak several languages may have brains that age more slowly, with four-language speakers showing brains that appeared about 13 years younger than those of monolinguals. Starting earlier and becoming highly fluent were also linked to a stronger effect.

science  Aug 22, 2026

Science Daily

This frozen fiber makes light and sound interact 1,000x more strongly

Freezing the liquid core of an optical fiber produced an extreme environment where light and sound interact more than 1,000 times more strongly than in ordinary fibers. Researchers used the effect to create optoacoustic memory, potentially paving the way for lower-energy photonic computers and advanced quantum technologies.

science  Aug 22, 2026

Science Daily

JWST finds early galaxies may be 4 times more massive than thought

Astronomers using JWST have discovered that massive early galaxies contain far more small, faint stars than expected. That hidden population could make some of these galaxies three to four times more massive than previous estimates. The finding makes it even harder to explain how enormous, mature galaxies formed so soon after the Big Bang. It could also suggest that planets around low-mass stars were more common in the early universe than scientists realized.

science  Aug 22, 2026

Science Daily

This yeast supplement may boost cancer-fighting immunity

A simple yeast-based food supplement may help restore the immune system’s ability to fight cancer, according to new research in mice. Scientists found that yeast beta-glucan reprogrammed early immune cells in the bone marrow, leading to stronger, longer-lasting cancer-fighting responses against colorectal, skin, and breast cancer cells.

science  Aug 22, 2026