Space Exploration

Houston, we have a problem ... with the toilet

After a successful trip around the moon, everything has been going smoothly on the Orion spacecraft's journey back to Earth—except for the $23 million toilet, which has gotten clogged.

Molecular & Computational biology

One DNA letter can trigger complete sex reversal

Researchers at Bar-Ilan University have discovered that changing just one letter in DNA can completely alter sex development in mice. In the new study, published in Nature Communications, a single-letter insertion in a non-coding ...

Physicists zero in on the mass of the fundamental W boson particle

When fundamental particles are heavier or lighter than expected, physicists' understanding of the universe can tip into the unknown. A particle that is just beyond its predicted mass can unravel scientists' assumptions about ...

AI uncovers hidden immune defenses inside bacteria

Researchers at the Massachusetts Institute of Technology (MIT) have discovered thousands of new proteins that protect bacteria from virus attacks using an AI system called DefensePredictor. What would usually take months ...

A 'stemness checkpoint' helps control stem cell identity

A study published in Cell Research advances a central idea in stem cell biology by identifying a checkpoint that controls the identity of many different types of stem cells across developmental stages. For nearly two decades, ...

Why anti-cancer drugs do not always live up to expectations

For more than a decade, a class of drugs called BET inhibitors has been tested in cancer trials with high expectations. The biology looked promising. Many cancers depend on oncogenes that "Bromo- and Extra-Terminal domain" ...

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Medical Xpress

Tech Xplore

Uncharted island will soon appear on nautical charts

A 93-strong international expedition team has been exploring the northwestern Weddell Sea in the Antarctic on board the Alfred Wegener Institute's icebreaker Polarstern since February 8, 2026. In this key region for global ...

DNA evidence reveals a Stone Age population collapse in France

By analyzing DNA of ancient skeletons at a Neolithic burial site near Paris, an international team of researchers has uncovered evidence of a dramatic population replacement 5,000 years ago. The findings indicate that the ...

Mathematical model predicts fish freshness in real time

Every day, fish caught in oceans and seas around the world pass through a long journey before reaching supermarkets, restaurants, and home kitchens. Along the way, their freshness steadily declines, often in ways that are ...

March smashes heat records for continental US

March's persistent unseasonable heat was so intense that the continental United States registered its most abnormally hot month in 132 years of records, according to federal weather data. And the next year or so looks to ...

Soaring petrol prices are hurting more than your wallet

Australians don't need an economist to tell them they're hurting at the petrol pump. They feel it every time they pull into a service station, every time they rethink a planned holiday, or every time they've had to squeeze ...

City animals act in the same brazen ways around the world

The urban monkeys in New Delhi are so bold they'll steal the lunch right off your plate. If you've spent time in New York, you've probably seen squirrels try to do the same. Sydney's white ibises got the nickname "bin chickens" ...

A urine test that could change the course of bladder cancer care

Bladder cancer arises from the lining of the bladder, the organ that stores urine, and is one of the most common cancers in the United States. Most patients are diagnosed at an early stage called non-muscle invasive bladder ...

Drones and AI take flight to combat mosquito-borne disease

As warming temperatures spread dengue to new regions, Stanford researchers are using AI-powered drones to hunt down hidden mosquito breeding sites. Anyone who has left water standing in a wading pool or empty flower pot knows ...

Cell-by-cell analysis offers clues to pregnancy risks

The biological connection between a pregnant woman and her developing baby has been mapped in unprecedented detail by UC San Francisco scientists, revealing new cell types and insights into conditions such as preeclampsia, ...

New method rapidly analyzes cell proteins and metabolites

Researchers at Cedars-Sinai have developed a fast, new technique for analyzing cells, described in the journal Angewandte Chemie. The approach, called single-injection multi-omics analysis by direct infusion (SMAD), can detect ...

Why cats stop eating—it's not just fullness

Why do cats often leave food unfinished? Many cat owners have experienced this puzzling behavior. Domestic cats are well known for eating multiple small meals throughout the day, a pattern thought to reflect their evolutionary ...