A rocky exoplanet outside the Earth's solar system may have an atmosphere, according to new evidence gathered by NASA ...

NASA’s Chandra Observatory has produced vivid, energy-segmented X-ray maps of galaxy clusters, revealing shock waves, cooling ...

NASA’s Chandra telescope uses a new X-arithmetic method to compare X-ray energies and show how supermassive black holes shape galaxy clusters and galaxy groups, revealing differences in gas movement a ...

The X‑arithmetic technique offers a powerful new way to map the physics of other galactic structures across the universe and ...

These XR glasses are a theme park experience waiting to happen. I checked out Disney-backed startup Liminal Space's tech in person.

For the first time, scientists have made a clear X-ray detection of chlorine and potassium in the wreckage of a star using ...

An important part of data collection for the United States space program, the North American X-15 had astonishing performance ...

The McDonald Douglas X-36 was a groundbreaking, remotely piloted research aircraft developed in the 1990s through a collaboration between NASA and McDonnell Douglas. Its primary objective was to ...

NASA has revealed more detail about the recent first flight of its X-59 Quesst supersonic demonstrator jet, a milestone the agency describes as demonstrating its continued ability to manage ...

SpaceX has fallen behind in developing a crewed lunar lander for NASA’s Artemis 3 mission, prompting the agency to reopen the contract to other providers. The added pressure has pushed SpaceX to ...

Blue Origin successfully launched—and partially landed—its New Glenn rocket on Thursday. The achievement marks a major step forward in the company’s bid to rival SpaceX as a reliable provider of ...

The "quiet" supersonic aircraft developed by NASA and Lockheed Martin has completed its first flight in California. Dubbed the X-59 Quiet SuperSonic Technology Aircraft, or Quesst, it is a sleek ...