For more than a century, popular culture has promised that humanity will spread effortlessly across the Solar System, turning ...

The European Space Agency's ExoMars Trace Gas Orbiter image of interstellar comet 3I/ATLAS as it passed close to Mars. (The European Space Agency) A mysterious interstellar comet — just the third such ...

This summer, scientists spotted an incredibly rare visitor to Earth’s solar system—a comet, now known as 3I/ATLAS, that entered our solar system from the galaxy beyond and is zipping past the sun at a ...

"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if Mars weren't there?" ...

Do you know which planet has a waterfall four times taller than Angel Falls? Discover the largest waterfall in the Solar ...

Olympus Mons is a giant volcano on Mars. It is the tallest mountain in space. It is almost three times higher than Mount Everest. It shows us how amazing the rocks and land on Mars can be.

Solar wind sounds poetic, but it's a very real and powerful phenomenon, connecting the Sun to every part of our solar system. Unlike the wind we feel on Earth, solar wind isn't moving air; it's a ...

A mysterious interstellar comet — just the third such object ever confirmed to have entered our solar system — streaked past Mars last week. A spacecraft in orbit around the red planet had a front-row ...