Like a toddler right before naptime, TRAPPIST-1 is a small yet moody star. This little star, which sits in the constellation ...

Forty years ago, Voyager imaged Uranus and presented the world with a new mystery. Upon further inspection, it may have just ...

NASA's next big eye on the cosmos is now fully assembled. On Nov. 25, technicians joined the inner and outer portions of the ...

When you think of ringed planets, you probably assume there's only one of them in our Solar System, Saturn. But what if I ...

Space questions everything about what we know about existence and consists of gigantic stars, icy comets and distant worlds ...

Scientists believe a powerful solar wind burst may explain Voyager’s unusual 1986 radiation readings at Uranus, offering new insights into distant planetary environments.

New data on interstellar comet 3I/ATLAS reveals strange gases and materials formed around another star, offering rare clues ...

How do planetary systems form and evolve? This is what a new and groundbreaking laboratory at the Southwest Research ...

Billionaire spacewalker Jared Isaacman is back before the Senate after being yanked and then renominated by President Donald ...

"The James Webb Space Telescope has captured helium escape from this planet for the first time, and it is the most confident ...

John Casani spent more than half a century turning speculative ideas about distant worlds into working spacecraft that could survive the trip. His quiet influence at NASA’s Jet Propulsion Laboratory ...

Elisha Sauers writes about space for Mashable, taking deep dives into NASA's moon and Mars missions, chatting up astronauts ...