EVANSTON, Ill. — Except for the fact that we call it home, for centuries astronomers didn’t have any particular reason to believe that our solar system was anything special in the universe. But, ...

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...

Chaos strikes galaxies that age prematurely, according to a survey of 3,000 galaxies. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The more ...