The asteroid, around 100 feet in diameter, is speeding toward our planet at about 22,000 miles per hour, according to NASA.

Astronomers are constantly tracking “potentially hazardous” objects in space, using advanced telescopes capable of detecting ...

A niche corner of the commercial space sector is attracting attention from United States national security planners, not because of its economic promise, but because of the technical problems it is ...

The CRASH Clock is a new predictor of how much time there will be before a collision if a solar storm knocks out power and ...

Discoveries can come from the most unlikely places — at least, that's what one high schooler found out, after finding nearly 1.5 million new objects in space.

The space rock has a 4.3% chance of striking the Moon in six years—and it could generate a flash nearly as bright as Venus.

Time moves differently in space. Near black holes, gravity slows clocks and stretches seconds. This explainer reveals how time bends and affects astronauts and Earth.

January brought a wide range of thoughtful science conversations featuring researchers from the SETI Institute, spanning everything from hands-on planetary defense with citizen scientists to careful ...

If the building-size asteroid 2024 YR4 crashes into the moon in December 2032, the impact will produce a bright flash that may be visible to the naked eye, a new study finds.

SpaceX has introduced a new system for tracking what is going through low Earth orbit and how close those items are to each ...

European security officials believe two Russian space vehicles have intercepted the communications of at least a dozen key ...

Scientists are observing the behavior of a supermassive black hole that is displaying exceptionally messy eating habits.