When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. NASA's leading planet-hunting spacecraft has spotted its second planet that matches Earth's size ...

Astronomers have discovered a new planetary oddball beyond the solar system that is as fluffy and light as cotton candy. The extrasolar planet or "exoplanet" named WASP-193 b is around 1.5 times the ...

For just the second time ever, astronomers have discovered multiple "Tatooine worlds," or exoplanets orbiting a pair of stars, in the same star system. The discovery is further proof that these Star ...