Now, a group of scientists says Pluto should definitely be added back to the planet list — oh, and that there are over 100 other objects in our solar system that should also be called planets.

Snapchat is one of the most popular social/messaging apps around. We all know you can use it to send photos and videos to ...

Watch this video to find out more about the Earth, planets in our Solar System and other planets far off in outer space. From up here on the International Space Station I get a great view of Earth.

With the exception of Pluto, planets in our solar system are classified as either terrestrial (Earth-like) or Jovian (Jupiter-like) planets. Terrestrial planets include Mercury, Venus, Earth ...

Anyone who looked up at the sky on Wednesday night may have caught a glimpse of an impressive sight: all the planets of our solar system on display. The phenomenon — also known as a "planet ...

The solar system has many more moons than the one we ... often referred to as the "three-body problem." The two innermost planets, Venus and Mercury, will shine together low in the western sky ...

one which can offer superb views of the other bodies in the solar system. But which one to choose? We've got you covered with our guide to the best telescopes for seeing planets. There are several ...

Earth has a nearly circular orbit, but some planets outside our solar system, called exoplanets, have very elliptical orbits. UCLA astrophysicists have now measured the shape of the orbits of ...

The findings provide strong evidence that four giant exoplanets 130 light-years from Earth formed much like Jupiter and ...

Everyone knows about the Solar System, and the planets that make it up. They’re in space, orbiting the Sun, in an order we all at least used to be able to recite. But it was not always so.