Add Yahoo as a preferred source to see more of our stories on Google. The F-35 program is working to get the latest jets capable of carrying out combat missions, but important tests for its upgrades ...

The "alien mothership" hypothesis for interstellar comet 3I/ATLAS is about to have a key test, as it hits solar conjunction and perihelion. What does that mean, and why is a Harvard professor of ...

For almost 60 years, NASA's Stennis Space Center has tested rocket systems and engines to help power the nation's human space exploration dreams. Completion of a critical water system infrastructure ...

ASBM-1 undergoes vibration testing at Northrop Grumman’s satellite manufacturing facility in Dulles, Virginia. Credit: Viasat WASHINGTON — Two satellites designed to bring mobile broadband coverage to ...