Saturn has 83 known moons, the most of any planet in our Solar System. This size comparison video from MetaBallStudios lines them all up, with London as the background. The same YouTuber recently ...

Earth’s been around for a long time. And during its tenure as a planet, has been slammed with a lot of cosmic objects; the largest of which left massive craters in their wake. In a new size comparison ...

An animation posted to Twitter has shocked social media users by showing the impressive size of Jupiter and just how rapidly the solar system's largest planet rotates. The animation posted by ...

In a new study, a team of astrophysicists, including two researchers at CU Boulder, have discovered a small and rocky world orbiting a star far from Earth—similar to our own planet, perhaps, but much ...

A NASA mission has spotted an Earth-size exoplanet orbiting a small star about 100 light-years away. The planet, named TOI 700 e, is likely rocky and 95% the size of our world. The celestial body is ...

NASA's leading planet-hunting spacecraft has spotted its second planet that matches Earth's size and may be able to retain liquid water — and both worlds orbit the same star. NASA's Transiting ...

Astronomers Discover a Rogue Planet the Size of Saturn Drifting Through Our Galaxy ...