From the first satellite in orbit, to the first human in space, to the first steps on the moon, the United States government has always framed space exploration as a race. As U.S.-China space ...

As global powers set their sights on the moon, the United States military is taking steps to extend its surveillance far ...

As the moon becomes the center of the new space race, the United States is looking for new ways to track spacecraft and other ...

As the Moon becomes the focus of the 21st-century space race, the US military is looking for new technologies to monitor ...

The Earth is getting a second moon for a limited time beginning the end of September. An asteroid will come close enough to Earth to temporarily enter its orbit at the end of the month, a phenomenon ...

The sun's gravity will pull the moon farther away from Earth than it's been in over five years on Nov. 19, though it'll be ...