Discover interesting facts about Saturn, its rings and whether it could contain extraterrestrial life.

Jupiter is the largest planet in the solar system. It's about 11 times wider than Earth with an equatorial diameter of 88,846 ...

Earth" planet was discovered by researchers. It is not believed these planets are more common than previously thought.

Watch this video to find out more about the Earth, planets in our Solar System and other planets far ... of asteroids of very different shapes and sizes. Some are almost spheres, like planets ...

These planets are relatively small in size and in mass. A terrestrial planet has a solid rocky surface, with metals deep in its interior. In the solar system ... the different colors seen in ...

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt, is helping scientists nail down their respective masses, a new study reports. The Kuiper ...

Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen ... "We don't know the size of the planet. We don't know the reflectivity of the planet.

The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the fifth largest planet in our solar system ...