NASA

A young NASA mission spotted strange movements of X-rays in the supernova remnant known as Cassiopeia A, which may include an extremely dense and small star.

NASA's InSight mission spotted a marsquake that probed the thick Mars crust and confirmed why the north and south of the Red Planet are so different.

Newly divulged details about the Artemis 2 moon crew's include mission milestones and a simulated docking exercise planned in Earth orbit before flying to the moon.

The second all-private mission to the International Space Station by Axiom Space will launch no earlier than May 21. Learn more about the 4 crew members on board.

As space companies target possible servicing missions to the Hubble and Spitzer space telescopes, the long-running Chandra observatory is also on the list for a tune-up.

A division of the U.S. Space Force wants to bring NASA's Spitzer Space Telescope back, three years after the observatory was shut down to help free up resources for the James Webb Space Telescope.

Kathy Lueders, who retired as NASA's human spaceflight chief at the end of April, will help SpaceX develop its giant new Starship deep-space transportation system.

A second consortium has plans to possibly boost the Hubble Space Telescope and extend its science mission, after SpaceX raised the idea in 2022.

A NASA scientific balloon flight was terminated Sunday (May 14) after the craft developed an irreparable leak about a day and a half into flight.

The ShadowCam imager aboard South Korea's Danuri moon orbiter recently captured a photo of NASA's Lunar Reconnaissance Orbiter as the two spacecraft zipped past each other.

NASA has given up on the planned moon mission of its tiny Lunar Flashlight cubesat, which aimed to hunt for water ice in shadowy lunar craters.

Finding alien life just took a twist. A snake-shaped robot from NASA aims to climb the crumpled terrain of icy moons like Enceladus to search out microbes.

A book-shaped rock on Mars was likely carved by ancient water running through the area, scientists on NASA's Curiosity rover mission say.

NASA's Mobile Launch Platform-3, from which the first astronauts departed Earth to fly around and land on the moon now, itself, only has a limited time left on the planet.

Retired Major General Roy Bridges and Senator Mark Kelly were honored by their peers as the newest inductees into the U.S. Astronaut Hall of Fame at the Kennedy Space Center Visitor Complex.

Rocket Lab will launch the first set of NASA's TROPICS satellites on May 7, to provide better forecasts amid extreme weather.

Sam Durrance, who as an astronomer was one of the first non-career astronauts to fly after the loss of space shuttle Challenger, has died at 79. Durrance flew twice accompanying the payload he built.

More than four decades ago, King Charles III got an up-close look at NASA's very first space shuttle, a test vehicle known as Enterprise.

SpaceX's launch of Ax-2, the second private crewed mission to the International Space Station, is now targeted for the evening of May 21.

Astronauts flew the SpaceX Dragon capsule Endeavour to a new port on the International Space Station early Saturday (May 6).