Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this ...

The Expanse won praise for its amazing stories and complex characters, but the sci-fi series also nailed scientific and ...

Despite being known as the Red Planet, Mars shows off its swirling yellows, oranges and browns in a new satellite photo from ...

The aerospace giant says it can revive Mars Sample Return with a leaner, lower-cost approach drawing on proven designs.

If we're to land humans on Mars in the coming decades, we'll have to know what challenges await them when they get there.

See the Red Planet slip behind the moon and re-emerge in this time-lapse. Credit: Griffith Observatory | edited by Space.com's edited by Steve Spaleta Music: Into the Forest I Go by David Celeste / co ...

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Mars has lost immense amounts of water over it lifetime, and scientists aren't sure exactly how. New research hints that the ...