NASA wants to activate a working uranium-fission reactor aboard an uncrewed spacecraft heading toward Mars in late 2028. But Space Reactor-1 Freedom, or SR-1, does not yet have a booked launch, a ...

An unidentified aircraft resembling the SR-71 Blackbird appeared in Jared Isaacman's All-In Summit presentation. Asked whether it was an SR-71, the NASA administrator cryptically replied: “You sure ...

NASA astronauts Suni Williams (left) and Butch Wilmore (right) pose in front of a graphic of the mission patch for the Starliner Crew Flight Test. Image: Will ...

NASA's X-59 supersonic jet, designed to fly without sonic booms, just hit a testing milestone in California. Here's what ...

The new missions will bring SpaceX's total under the contract to 17 operational crew flights.

NASA’s Roman Space Telescope could turn a planned 10-year mission into at least 22 years of science thanks to unexpectedly ...

NASA awarded SpaceX a contract modification worth $946 million for three additional crewed missions to the International Space Station, the agency said on Friday.

Planes that fly faster than the speed of sound create thunderous supersonic booms. But with NASA's X-59 plane, that could change. The space agency plans for the aircraft's first flight in 2025, an ...

If all goes well, NASA’s latest “flagship” observatory will be sending back unprecedented cosmic panoramas and revolutionary images of exoplanets by the end of the year. Like its predecessor, the ...

Two decades after Concorde’s last flight a new class of supersonic commercial jets are on the horizon. Boom Supersonic's experimental XB-1 jet (shown in a Schlieren photograph) has flown at supersonic ...