Trump again called on the United States to send astronauts to Mars in his speech to a joint session of Congress.

SpaceX's flight test of its Starship spacecraft ended with a "rapid ... Researchers across the United States collected data on more than 35 butterfly monitoring programs. It included data from ...

Debris from an apparent explosion of the eighth SpaceX Starship test flight was seen lighting up the skies above the Bahamas Thursday night. Video shows the remains of the 400-foot spacecraft from ...