You may have heard that the sun will swallow the Earth in 5 billion years, but the planet will be uninhabitable a few billion ...

The US is building multiple major telescopes and planetary probes to advance the search for life beyond Earth.

"Are we alone?" This ancient question has occupied humanity's mind for a long time. In 1995, the discovery of the first ...

Elon Musk is taking the long view. The billionaire SpaceX founder has long said that humanity needs to expand its footprint ...

Hidden in every tenth of a degree of extra warmth are hair-trigger switches built into Earth systems that are critical for ...

A supercomputer may have just predicted when life on Earth will end, and, thankfully, it's going to be a long time from now.

A prevailing theory in the scientific community, known as the "RNA World" hypothesis, suggests that life may have originally ...

A series of studies have cast doubt on the sensational claim that "the strongest evidence yet" was found that life exists anywhere else besides Earth.

The hunt for habitable worlds has become a hot topic in astronomy. For decades, the search has been focused on planets in the ...