Picture this: a small audience is quietly ushered into a darkened room. They gasp in awe, as a brilliant night sky shines ...

Astronomer Eliza Kempton said that she had waited her "entire career" to peer into an atmosphere from this mysterious class of planets.

Astronomers have long speculated about an unseen planet lurking in the solar system's outer edge. This hypothetical world, ...

New research suggests there may be a hidden population of minimoons lurking near Earth, with fragments of the Moon traveling ...

Have an out of this world coloring pages with our free planet coloring pages. We have a bonus space coloring pages, and free ...

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

The solar system consists of our star, the sun, and everything bound to it by gravity: the planets Mercury, Venus, Earth, ...