Space Exploration

Boom Supersonic's XB-1 experimental jet has been cleared for supersonic flight by the FAA.

JWST's surprise discovery of methane emissions and likely aurorae over a distant brown dwarf could indicate this "failed star" is orbited by an active moon.

Starliner will make its first trip to space with astronauts no earlier than May 6. The historic flight also marks the crewed debut of a new generation of Boeing blue spacesuits.

For the chief leader of the SETI Institute, established to search for and understand life beyond Earth, there's a need to step back and cuddle up to a cup of cosmic reality.

Boeing's Starliner spacecraft moved between buildings at NASA's Kennedy Space Center in Florida to get ready for launch. Its first astronaut mission is expected on May 6.

Switzerland became the 37th country to sign the Artemis Accords for peaceful moon exploration with NASA on April 15, following the inclusion of Greece and Uruguay in February.

To see the premier astronomical observatory in its full-size glory, you need to go to Lagrange Point 2, a location farther away than anyone has traveled. Or, soon, you can visit Colorado.

The small object that crashed through the roof of a Florida home last month was indeed part of a pallet jettisoned from the ISS three years ago, NASA has confirmed.

Boeing Starliner astronauts spent hundreds of hours in simulators preparing for Crew Test Flight, which lifts off May 6. I got a brief taste of what they experienced.

NASA is asking its various research centers as well as private industry for new ideas about how to get Mars samples back to Earth relatively quickly and cost-effectively.