Sometimes, in order to support an idea, you first have to discredit alternative, competing ideas that could take resources ...

What is the Solar System truly like? In this video, we take a closer look at real images captured by NASA and other space agencies, showcasing our planets and the vast beauty of the Milky Way without ...

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

This process, called accretion, is how everything in the solar system – planets, moons, comets and asteroids – came into being. Telescopes can see young solar systems being born.

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, researchers say.

NASA’s Lucy spacecraft captures asteroid Donaldjohanson, marking a new step in its mission to explore the solar system’s ancient past.

The motions of asteroids—rocky debris left over from the formation of the solar system—aren’t dictated only by the gravitational pull of the sun and other planets.

This April, the skies put on a dazzling show – watch planets like Jupiter, Venus, and Mars glide across morning and evening skies, catch the Lyrid meteor shower lighting up the night, and explore a ...

If you're trying to get a beautiful look at the planets in our solar system, you're in luck.

All eight of the solar system’s “major” planets appear in this illustration, but the actual number of planetary bodies orbiting our star is far greater.

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...