A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

An interstellar comet that originated outside our solar system just flew by the sun. Next, the object will fly by Earth in December.

While most scientists believe it’s a natural comet, one Harvard astronomer has suggested its unusual features could hint at ...

Scientists found two Earth-sized planets and a third candidate orbiting a nearby double star system, TOI-2267.

Interstellar comet 3I/ATLAS is briefly out of view as it travels around the sun this week, but researchers and amateur ...

Researchers armed with a new "photonic lantern" device have discovered an unexpectedly asymmetrical disk of gas swirling ...