A "slow-moving blob" that may have been a flock of birds triggered a lockdown of the White House and caused the US Capitol to be placed on "restrictive access" Tuesday morning.
US and Canadian fighter jets intercepted two Russian long-range bombers off the coast of Alaska Thursday, according to the North American Aerospace Defense Command, which released images of the encounter.
For the second time in two days, U.S. F-22 stealth jets intercepted Russian bombers and fighter jets off the coast of Alaska, North American Aerospace Defense Command said in a statement.
US F-22 stealth jets intercepted four Russian bombers and two Russian Su-35 fighter jets off the coast of Alaska on Monday, according to a statement from North American Aerospace Defense Command.
At what age do children wonder whether Santa really exists?
The guessing days are over.
In a nondescript office building in the suburbs of Philadelphia, a software company is watching thousands of pieces of junk floating around in space.
Human error is blamed for a false alarm of a missile heading for Hawaii, but the scare left Americans wondering how the missile detection and emergency messaging systems are supposed to work -- and what went wrong.
The US military command that is charged with protecting the airspace for North America is on alert this Christmas weekend for a man with a white beard and a red suit.