The Harvard astrophysicist has devoted years—and thousands of interviews—to the idea that mysterious objects streaking ...

In 1988, the Soviet Union launched two of its most ambitious spacecraft ever built not toward Mars itself, but toward one of ...

Discover this week's must-see night sky events, moon phases, and stunning astrophotos. Sign up for our skywatching newsletter ...

Scientists propose building a lab on the moon to screen Mars and other space samples for alien microbes before they ever ...

A Terracotta Army-inspired robot left visitors stunned after its leg fell off mid-dance in Shaanxi, China. Footage shows the ...

An interstellar comet known as 3I/ATLAS, which swept past the Sun in 2024, could be a 12‑billion‑year‑old relic from deep ...

SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology ...

Harvard astrophysicist Avi Loeb has floated the provocative idea that humans might themselves be alien‑made 'autonomous probes,' built through advanced synthetic biology rather than evolving entirely ...

There have been extraterrestrial samples brought to Earth already, from the Moon as well as asteroids. We do not expect those ...

In the 1982 blockbuster, E.T. the Extra-Terrestrial, E.T. is lured out of hiding using a trail of Reese's Pieces. But what ...

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

The best Steven Spielberg movies include Disclosure Day, ET, Indiana Jones, Jaws, Schindler's List, Jurassic Park, The ...