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

But now, they're planning to build telescopes on the far side of the Moon. These instruments will probe one of the last unexplored windows on the Universe. Here, astronomers hope to get a glimpse of ...

“All in all, the undisputed factual record indicates that the United States and El Salvador have behaved as principal and ...

For more than a century, popular culture has trained us to picture extraterrestrials as bug-eyed, bipedal “little green men” ...

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

The sudden silence of a veteran Mars spacecraft has turned a routine comet flyby into one of the most intriguing space ...

Polling shows that nearly half of Americans now believe aliens have visited this planet—and that the number who aren't sure ...

In the summer of 1977, while most people were listening to disco and trying to figure out Star Wars, NASA launched two small spacecraft called Voyager 1 and Voyager 2. They were simple-looking robots ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...

Nasa’s mission teams use extreme environments to trial equipment and procedures for future lunar and planetary exploration.

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 ...