The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...

This year, Hollywood’s decline was evident from its output—but a few great, conversation-starting shows made our critic crave ...

The latest visitor from deep space is leaving a mark that stretches far beyond its icy core. Interstellar comet 3I/ATLAS is wrapped in an enormous X-ray glow that extends roughly 250,000 miles into ...

In July, researchers using the NASA-funded Asteroid Terrestrial-impact Last Alert System survey telescope in Chile made an ...

From Viking to Perseverance, scientists have spent decades chasing chemical hints that could point to life beyond Earth.

As this interstellar object approached its closest point to Earth, a massive radio telescope attempted to sniff out a ...

Experimental particle physicists working at the MicroBooNE experiment at Fermilab National Accelerator Laboratory have found ...

"How do you get to Mars when the launch vehicle is not necessarily going to Mars?" ...

Did an alien spacecraft just fly by Earth? That’s the question a lot of people, including Harvard astrophysicist Avi Loeb, are asking right now. A massive interstellar object called 3I/ATLAS which ...

On March 31, SpaceX launched the private Fram2 mission, which sent four private astronauts on a 3.5-day mission to Earth ...

An astrophotograph of the interstellar comet known as 3I/ATLAS highlights its green coma and a wandering blue-tinted ion tail. (Copyright Victor Sabet and Julien De ...

The order from the U.S. Court of Appeals for the Ninth Circuit is a win for Mr. Newsom, a Democrat, who has vigorously ...