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

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

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

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

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.

The spacecraft now almost tips upside down relative to Mars to give its radar the best view. The Mars Reconnaissance Orbiter ...

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