Could humans spread Earth life beyond our planet? Astrobiologists explain where extremophiles might survive and why the risks ...

Scientists may have just taken one of the biggest steps yet in the search for life beyond Earth. Meet K2 18 b, a distant ...

A new exoplanet model screens rocky worlds by their ability to retain atmospheres over geologic timescales, helping narrow ...

Many have watched recently released UFO videos, but most still think the government knows more than it is saying.

Scientists are raising concerns that we may be overlooking evidence of extraterrestrial life even when it is present. Hidden ...

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have identified just under 50 rocky worlds most likely to be habitable out of ...

When a scientific controversy or breakthrough dominates headlines, press officers and journalists often quote a handful of ...

Like the lead character of “Project Hail Mary,” some scientists are proposing ways that life might exist beyond a star’s “habitable zone,” often considered the gold standard of potential livability An ...

An unusual sighting in a NASA image has reignited speculation that something extraterrestrial once existed on Mars.

This voice experience is generated by AI. Learn more. This voice experience is generated by AI. Learn more. The Milky Way galaxy has more than 400 billion stars in it. Over the last few decades, ...

Scientists are listening in on sperm whale conversations and studying Earth's strangest microbes to prepare humanity for first contact with extraterrestrial life. Tardigrades—a type of invertebrate ...