WASHINGTON — President Donald Trump has signed the National Defense Authorization Act (NDAA), creating the U.S. Space Force, the sixth branch of the armed forces.
RFE/RL: Trump signs law establishing US space force
This NASA handout artist's rendition obtained March 25, 2018, shows the Transiting Exoplanet Survey Satellite (TESS), a NASA Explorer mission launching in 2018 to study exoplanets, or planets orbiting stars outside our solar system.
