After a few days of mystery, astronomers have reported that the fiery streak was a Starlink satellite re-entering Earth's ...

"There seems to be no limit for the degree of chemical complexity that interstellar space is able to fabricate." ...

World leaders are converging Tuesday at the United Nations annual climate conference in Baku, Azerbaijan although the big names and powerful countries are noticeably absent, unlike past climate talks ...

A dazzling fireball that illuminated the night sky over multiple U.S. states this weekend was captured on camera and has been identified as a SpaceX Starlink satellite making its fiery return to Earth ...

If another gravity theory is correct, "then the broader implications are enormous," astrophysicist Stacy McGaugh told ...