Humans have questions about alien life. But those beings, if they exist, likely have some questions of their own about humans, queries we may want to answer before we find any life beyond Earth.
Watch Now! Astronauts Tacking Tricky Spacewalk
The U.S. Air Force must change the way it does business to fight the growing threat to the nation's dominance of the final frontier, military officials say.
Physicists think this might be the first of many hidden states of matter that could be uncovered using laser flashes.
Near the edge of Jamaica Bay in New York City, about a dozen people gathered to watch Mercury travel across the sun.
A bright fireball meteor streaked across the night sky above Missouri Monday (Nov. 11), passing over St. Louis' iconic Gateway Arch.
After nearly a month of reports, Apple TV+'s fictionalized version of the 1960s race to the moon, "For All Mankind," has officially been renewed for a second season.