An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

Enaiposha, also known as GJ 1214 b, is an exoplanet orbiting the red dwarf Orkaria, located just 48 light-years from the ...

Continent-size islands deep inside Earth's mantle could be more than a billion years old, a new study finds.

Asteroids are rocky objects that orbit the Sun, just like planets do. There are millions of asteroids of very different shapes and sizes. Some are almost spheres, like planets, but most are ...

Mars’ small size severely limited both the longevity ... The inner solar system contains four vastly different planets, and we still don’t really understand why, said Clement.

Their size is why scientists categorise ... which are the perfect temperature to host life on planets nearby. However, every star is different and there is no right answer. Even, the Sun ...

Earth grew to its final size through one last major collision with another ... Different types of meteorites coming from the asteroids left over in the solar system after planet formation have ...

Just six light-years from the solar system — in cosmic terms, our backyard — exists a world about half the size ... planets. In addition to discovering Barnard’s b — a completely different ...

Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a subsurface ocean on the icy dwarf planet.