Billionaire and commercial astronaut Jared Isaacman said increased human activity in space will require military protection.

The cap for credentialing reimbursements through the Army program will drop from $4,000 to $2,000 in coming months.

Lt. Col. Nicholas J. Harvey was relieved of command of the Heavy Helicopter Squadron 361, known as the “Flying Tigers,” on ...

The partnership comes as Japan is prioritizing space in its national defense strategy — pledging to spend billions to improve ...

The U.S. and its partners want to ensure the Islamic State can’t fill the leadership void following President Bashar Assad’s ...