Scientists created transgenic mice with woolly mammoth–like traits. But does it really bring us closer to bringing back woolly mammoths?

Engineers are exploring propulsion methods that could enable longer-distance travel ...

Many scientists say “subcritical” experiments and computer simulations make nuclear weapons testing unnecessary.

Astronauts Suni Williams and Butch Wilmore’s extended stay in the International Space Station will add to what we know about how space affects health.

In a small study, mice given fecal transplants from elite cyclists and soccer players had higher levels of glycogen, a key energy source.

GS-z13-1, marks the earliest sign yet spotted of the era of cosmic reionization at 330 million years after the Big Bang.

As 23andMe prepares to be sold, Science News spoke with two experts about what’s at stake and whether consumers should delete their genetic data.

A genetically modified mini pig’s liver was able to function in the body of a brain-dead patient throughout a 10-day experiment.

A dog's physical cues often take a backseat to environmental ones, skewing humans' perceptions, a small study suggests.

Carbon credits sold on the voluntary market are under scrutiny for not offsetting greenhouse gas emissions as claimed.

The iconic Cape Verde date palm came from commercial trees gone feral and could provide genetic variety to boost the resilience of its tamer relatives.

Solve the math puzzle from our April 2025 issue. In honor of April Fools’ Day, we offer the puzzling case of the Lesser Fool.