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.

A fresh understanding of how black holes eat offers a new way to estimate their masses.

On Friday, Dec. 8, Halley's Comet reaches its farthest point from the sun and begins its journey back through the solar system.

Weird effects of space junk collisions could help researchers detect dangerous, hard-to-see orbital clutter.

We've seen the movies and read the books about what it would be like to have a lunar habitat — but to turn our Sci-Fi fantasy into a reality, scientists must develop a game plan.

A new body in the Solar System starts a multi-trillion-dollar gold rush, while the shockwaves from a certain someone's departure continue to resonate on Mars.

Of all of the food items she helped send into space, Vickie Kloeris' favorite was the cherry-blueberry cobbler. A NASA food scientist for 34 years, Kloeris has published her memoir 'Space Bites.'

What to expect from Zack Snyder's "Rebel Moon," the sprawling new sci-fi saga premiering on Netflix on Dec. 22, 2023.