The less massive an object is, the less round it is. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, the latest updates on ...

New research finds why some asteroids have weird, watermelon-shaped moons trapped in orbit around them, contrary to what typical asteroid formation theories predict. When you purchase through links on ...

A long-lost moon could explain why Mars is so different from the other rocky planets in the solar system. Today, Mars has two tiny moons. But early in its history, the Red Planet may have had a much ...