Space News

Around the planet, a loosely knit but closely woven band of amateurs monitor the whereabouts of satellites -- be they secretive spacecraft, rocket stages, orbital debris or lost space probes.

Recent observations by the now-retired Spitzer mission have led to accurate predictions OJ 287, a blazar that contains a supermassive black hole orbited by another black hole. The post Supermassive Black Hole Orbits an E...

Senior analyst Bonnie Triezenberg: "The Air Force needs to think about how they can maximize the number of U.S. suppliers." SpaceNews.com

A newly discovered asteroid about the size of a bus will zip safely by Earth today (May 3), passing at a distance just over halfway to the moon.

Magnetars -- highly magnetized, rapidly rotating super-dense stars -- are among the most enigmatic creatures to inhabit the cosmos and their origins are shrouded in mystery.

The Eta Aquarid meteor shower peaks before dawn on May 5.