Uranus is an oddball planet. It spins around the Sun on its side, so the poles take turns pointing towards the Sun during the ...

Astronomers have long wondered why planets orbiting two stars like the iconic Tatooine in Star Wars are so rare. You would ...

General relativity helps explain the lack of planets around tight binary stars by driving orbital resonances that eject or destroy close-in worlds. This process naturally creates a “desert” of ...