Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

The planets of our solar system aren't randomly scattered. They all orbit in a near perfect, flat disc. The reason for this ...

Mercury is the innermost and smallest of the eight major planets in our Solar System, orbiting closest to the Sun. Though ...

Astronomers measure the speed at which the solar system is hurtling through space by mapping surrounding galaxies and ...

Still, science being science, we needed proof—and we got it in 1992, when two astronomers found two planets orbiting a pulsar ...

At the ragged frontier where the Sun’s influence gives way to interstellar space, Voyager 1 has stumbled into something that ...

YouTuber "The 5439 Workshop" has built a solar system coffee table with a miniature, mechanically-exploding star system.

Which planet is the furthest from the sun? Some may think it’s Pluto, but it’s actually Neptune. Learn more about this ice giant and how it can help us understand more about planets in our Solar ...

When a meteor streaks across the sky, it's not just beautiful. It's nature's way of delivering a time capsule to Earth.

Astronomers have revealed a surprising twist. The sun has always been thought to be at the center of our solar system, with planets moving around it. The famed Polish astronomer Copernicus pioneered ...

Westfield High School senior Kaitlynn Goulette and freshman Krystyna Goulette have developed a walkable, scale model of the ...

Astronomers have spotted an intriguing cluster of objects in the Kuiper belt, an enormous, donut-shaped region of icy objects ...