Scientists are pondering how to tell time on other celestial bodies. It's a lot harder than you might think.
NASA's Double Asteroid Redirection Test slammed a spacecraft into an asteroid, directly altering its path through space. Scientists are still studying the space rock to learn more.
Since the first days of the space program, astronauts wear a special patch specific to each mission. A small North Carolina company has designed them all since the Apollo lunar launches.
Seven astronauts died when the Space Shuttle Columbia disintegrated upon reentry on Feb. 1, 2003. NASA Deputy Administrator Pam Melroy looks back on the tragedy and how it shaped the agency.
NASA's Mars Reconnaissance Orbiter snapped the uncanny photo in December. Eyes are formed by craters. A hill with a "V-shaped collapse structure" resembles a snout.
InSight's end has long been in sight, with NASA warning that it would likely be inoperative by the end of the year. The lander went quiet this weekend and shared a tweet it said might be its last.
The Geminids meteor shower, one of the best and most reliable of the year, will peak on Tuesday night.
The successful splashdown of the spacecraft with no humans aboard keeps NASA's Artemis mission on track to put the first woman and first person of color on the lunar surface by 2025.
The close approach of 81 miles occurred as the crew capsule and its three wired-up dummies were on the far side of the moon. Astronauts will take Orion for a ride around the moon as early as 2024.
NASA says an extensive review of historical records found no evidence that Webb ever led or supported purges of government employees who were gay. But some astronomers think that's a pretty low bar.
"Iceland. Better than space." That's the new tagline from Iceland's tourism board. We asked the head of Visit Iceland why her country might have an edge over space — and consulted NASA as well.
Galaxies that existed soon after the Big Bang turn out to be surprisingly bright, a discovery that's both thrilled and puzzled scientists who study how the universe evolved over time.
NASA's Artemis moon rocket has finally launched after months of setbacks, from fuel leaks to hurricanes. If successful, the mission signals a big step toward returning humans to the moon.
The space agency has been trying for months to send its giant moon rocket on its first test flight. The goal is to send a crew capsule, with no astronauts on board, around the moon and back.
In the wee hours of Tuesday morning, the moon fell completely into Earth's shadow and turned a shade of red — either an astronomical delight or Election Day omen, depending on who you ask.