Assuming you’ve accepted Pluto’s demotion, Uranus and Neptune are the two planets in our Solar System farthest from Earth. That distance means humanity is still learning a lot about them. Some of ...

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 ...

Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. The planet Jupiter is famed for its immense size (a radius of ...

Searches for exomoons should target smaller rocky exoplanets, according to simulations of how Earth's moon formed. When you purchase through links on our site, we may earn an affiliate commission.