Cosmic microwave background data support cosmology’s standard model but retain a mystery about the universe’s expansion rate.

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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.

Southwestern Sydney's koalas have avoided the chlamydia outbreak threatening the entire species. But their isolation has left them extremely inbred.

The iguanas' 8,000-kilometer trip — one-fifth of the Earth’s circumference — is the longest made by a flightless land vertebrate.

In the sixth episode of The Deep End, listen to what’s next for Jon Nelson and for deep brain stimulation research for depression.

We are at a critical time and supporting climate journalism is more important than ever. Science News and our parent organization, the Society for Science, need your help to strengthen ...

The uptick in measles cases has left many people wondering about early signs of measles, whether they need an updated vaccine and treatment options.

A clinical trial found that spending about 10 minutes with a therapy dog reduced patients’ anxiety in a pediatric emergency room.

The privately-owned lander turned its cameras toward Earth as our planet cast its shadow over the moon. It’s not the first spacecraft to do so.