Search teams are on the ground in Canada's Yukon territory searching for an object that a U.S. F-22 fighter jet shot down on Saturday, the third object shot down in a week over North American airspace ...

Republicans are reacting after the U.S. military shot down a "high-altitude airborne object" on Saturday, saying that the U.S. is facing an "unprecedented" challenge Canadian Prime Minister Justin ...

A comet from another star system is sweeping through our cosmic backyard and, for the first time, astronomers have picked up ...

CAPE CANAVERAL, Fla. (AP) — NASA has discovered an interstellar comet that’s wandered into our backyard. The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this ...

An American fighter jet has shot down another high-altitude airborne object, this time above Lake Huron near Michigan on Sunday, marking the third time within three days that the US military has ...

WASHINGTON (CBS/AP) — U.S. officials said an "unidentified object" has been shot down Sunday for the third time in as many days, this time over Lake Huron, after earlier downings in Alaska and Canada.

The Haleakala Observatory, left, houses one telescope for the ATLAS system. That system first spotted the object 3I/ATLAS, which isn't visible in this image. AP Photo/Lindsey Wasson All of our ...