In December, astronomers identified that the asteroid YR4 had a small but not insignificant chance of striking Earth in 2032, ...

He led the establishment of the Planetary Defense Coordination Office at NASA in January 2016. Prior to NASA, he served 23 years of Air Force active duty working on a host of national security ...

The work that we’re doing is really important because warning time is everything,” says Danica Remy of the B612 Foundation in ...

A Sandia National Laboratories scientist has demonstrated how infrasound technology can improve planetary defense against ...

Space junk and meteoroids are falling to Earth every year, posing a growing risk as they re-enter the atmosphere at high ...

The U.S. needs to set an example for the rest of the world by taking our nuclear missiles off hair-trigger alert and ...

The Department of Defense is on the verge of a breakthrough with advanced nuclear energy that promises to strengthen military readiness and revitalize a globally competitive U.S. commercial nuclear ...

(A1C Devan Halstead/U.S. Air Force) Washington finds itself in another season of hearings related to nuclear weapons, as Congressional leaders consider approving new defense appointees, negotiate ...

The thought of a planet-killer-sized asteroid hitting Earth has captured the minds of both scientists and movie makers alike.

we would be able to apply a much bigger push to the asteroid than we could get from a kinetic impactor,” Kumamoto said about the “nuclear option” of planetary defense. “We don’t ...