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 ...

Alien planets are far away but extreme lasers on Earth are giving scientists a way to investigate what they're like.

This artistic illustration shows the TRAPPIST-1 red dwarf star system, home to seven Earth-sized exoplanets, several of which ...

Astronomers have narrowed down the cosmic search for life, identifying fewer than 50 rocky planets among thousands of known ...

A new study published in Monthly Notices of the Royal Astronomical Society has pinpointed the best planets for the search for ...

One of them is about 4.2 light years away - more than a whopping 24 trillion miles from Earth! Find out more here.

Humans have wondered for centuries whether we are alone in the universe — and a new study suggests that if alien ...

Add Yahoo as a preferred source to see more of our stories on Google. An artist's impression of a theoretical planet orbiting a redder star, which could cause microbes and plants on the planet's ...

If we're to find extraterrestrial life in the universe, astronomers have pinpointed the best places to look for it. They have ...

Our Moon is hostile to life. But this doesn’t mean that moons elsewhere in the universe are inhospitable to life. Far away from the solar system, moons of free-floating planets can keep water in ...

On a mission to contact other planets, former University of Hawaii astronomy professor Jeff Kuhn will introduce his vision of ...