Betelgeuse, one of the most recognizable stars in the night sky, will disappear for several seconds in a rare asteroid occultation on the evening of Dec. 11.

An instrument onboard India's Aditya-L1 spacecraft captured beautiful images of the sun earlier this week.

NASA's Ingenuity Mars helicopter will fly farther than it ever has before on Saturday (Dec. 9), covering more than half a mile of Red Planet ground.

Scientists aren't sure whether humanity really detected moons outside the solar system.

A new theory suggests the universe's most mysterious and dominant form of matter could exert a "dark force."

NASA is licensing a radical new form of propulsion that uses electromagnets to control the flow of plasma over aircraft and spacecraft flying at hypersonic speeds.