SPOILER ALERT: This article contains major spoilers for the first two episodes of "Alien: Earth," now available to stream on Hulu. In space (or from the safety of your couch), no one can hear you ...

Brazil’s 1996 UFO crash remains a mystery, with witnesses still searching for answers decades later. Despite advances in science, the events have left many puzzled. On Tuesday, investigative ...

Forty years ago, on January 28, 1986, the nation gathered to watch the Space Shuttle Challenger launch, a historic mission carrying the first "teacher in space," Christa McAuliffe. But 73 seconds into ...