It is not clear, with their opposition to Trump's NASA nominee, Jim Bridenstine (R-Okla.), if the Democrats intend to oppose every Trump appointment.
The Defense Department conducted a program between 2007 and 2012 to study reports of UFOs and videos of encounters with unknown objects taken by military pilots.
During a series of tests of the new ballistic missile defense interceptor conducted by the Pentagon’s Missile Defense Agency from 2010-2016, the interceptors missed their targets several times.
The UN Office for Outer Space Affairs is in talks with Colorado-based Sierra Nevada Corporation to provide an infrastructure giving the UN access to outer space.
Some scientists want to send messages into space in the hope of piquing alien interest. But might it attract the kind of attention no civilization wants?
A huge asteroid that could wipe out human life is heading for our planet. And it's just one of more than a half million near-Earth objects in our solar system.
Google has expanded its ability to keep an eye on everyone by buying "eye-in-the-sky" technology from Skybox.
Two House Democrats on Monday pitched a bill that would establish a national historical park on the lunar surface.