Astronomers have spotted a small rocky planet that orbits perilously close to its host star disintegrating as its surface is ...

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

Here's what to know about the short life of what was, for a single human lifetime, the solar system's smallest planet. Pluto ...

These are among the smallest planets yet found with this observing technique. The scientists hope this will mark a new era of finding more and more planets in the universe. Most of the rocky ...

A spacecraft operated by the European Space Agency and the Japan Aerospace Exploration Agency has made its final flyby of ...

Now European Southern Observatory (ESO) thinks one of the objects floating along the main belt might be the smallest dwarf planet in our solar system — an asteroid known as Hygiea. Hygiea isn ...

That was why the Romans named it after the speedy messenger god, Mercury. The smallest planet in our solar system has an extremely thin atmosphere. For this reason its surface temperature varies ...