Astronomy

Terraforming Mars could risk exterminating the very lifeforms we dream of discovering.

The author on writing her book, Our Moon, about the power of our satellite to guide evolution and human curiosity.

Did a colossal collision with a doomed planet give us our satellite?

What a trippy gravitational phenomenon can tell us about the universe.

The music of the cosmos is stranger than you think.

Could quantum mechanics hold the key?

NASA cosmic dust curator Marc Fries is here to explain.

A new image of our solar system’s most volcanic body.

Retired NASA astronaut Nicole Stott on her revelations from orbit.

What astronomers see in the light bouncing across the universe.

When our sun expands into a giant red star, it might not devour its third planet, after all.

It’s not absurd to think the universe might endure forever.