Researcher says sightings of the endangered moth have increased over the last two years but ‘this year has blown them out of the water’

What can a rare disorder tell us about human behavior?

Andy Weir is the New York Times bestselling author of The Martian, Artemis, Project Hail Mary, and Cheshire Crossing.

Social media has been a boon to autocratic regimes and their allied movements in democracies.

Everyone loves to remember how blogs were so much better than social media, but the truth is a bit more complicated.

A decades-old rule about human friendship turns out to be built on such shaky math that it could just as easily be 2 or 520.

Former British Prime Minister Gordon Brown shares what it was like to run a country, the effect it had on his personal life and what life is like after being in

Cosmic radiation comes from space. Only a small amount reaches the Earth's surface, but exposure is greater for people flying at high altitudes.

One in 60 adults Fiji lives with HIV but a recent emergency declaration may help address key issues such as syringe sharing

Changes in guidance and science seem to have little impact on millions of devastated lives. It’s a social crisis playing out behind closed doors, says Guardian columnist George Monbiot

Physicists have long struggled with their goal of making gravity a quantum force. A radical post-quantum approach might solve that problem – and clear up other cosmic mysteries, too

A Little Tooth - Your baby grows a tooth, then two,