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

The descent of stable societies into ones of endemic violence rarely produces anything but new forms of tyranny and terror.

I joined the Green Party of England and Wales in 2014.

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

Read the declaration and add your name.

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

What can a rare disorder tell us about human behavior?

New research - it’s one of the largest studies of emotional intelligence to date

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.

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

John Green, the #1 bestselling author of The Anthropocene Reviewed and a passionate advocate for global healthcare reform, tells a deeply human story illuminating the fight against the world’s deadliest disease.