In an effort to speed up the search for extraterrestrial intelligence, some researchers are sending messages into the cosmos. We may not…

The development of artificial general intelligence offers tremendous benefits and terrible risks

Species are going extinct and the climate is warming rapidly — yet at least materially, humans are doing better than ever. Welcome to the…

Seventy-four years after World War II, we’re still living with the risk of nuclear holocaust — and it all began on a patch of desert

For too long, human beings have used technology to pillage the planet. With limits approaching, we must find a better way.

A six-mile-wide asteroid ended the dinosaurs, and the same could happen to us one day. But NASA is at work on ways to keep us safe.

Humanity faces existential peril as never before. But whether or not we go extinct is up to us.

The Trump Administration’s decision to withdraw from a Cold War-era nuclear missile treaty will put us all in renewed danger