Learn about the solar system in our new What If song. Explore planets, moons, and cosmic wonders through music and imagination.

And how could it happen? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. This story is, of course, based in the realm of fiction, but could Earth ...

Astronomers have found GJ 251 c, a rocky planet. It is a super-Earth located only 18 light-years away. This planet is in its star's habitable zone. This means liquid water could exist there. The ...

"It all works like intricate clock gears. Throw more gears into the mix and it all breaks." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. What ...

Astronomers have spotted four smaller-than-Earth exoplanets orbiting the closest single-star system to us, called Barnard’s Star. According to the astronomers, these exoplanets — which are among the ...

In Liu Cixin's short story "The Wandering Earth (opens in new tab)" (first published in Chinese magazine Science Fiction World in July 2000), Cixin portrays a scenario in which the planet's leaders ...