A distant star dimmed by 97% for nearly 200 days. Astronomers say giant rings around a brown dwarf or super-Jupiter may explain it.

Astronomers may finally understand why planets orbiting two suns, the real-world equivalents of the "Star Wars" planet ...

Astronomers have witnessed a rare cosmic event: a massive star that didn’t explode in a spectacular supernova, but instead ...

"We support NASA's decision to fly the Artemis 2 mission with its current heat shield and are committed to seeing Orion safely launch and return on its historic mission to the moon with crew onboard." ...