A Chinese satellite may have intentionally nudged another spacecraft during secretive space maneuvers in near-Earth orbit, according to analysts.

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Ancient galaxies may be cosmic senior citizens today, but some have a wild streak in their past, one packed with frenetic star birth, astronomers say.









A NASA team is preparing a bid to test a chemical-free propulsion system that taps the power of Earth's magnetic field to move satellites and spacecraft in orbit.

Astronauts aboard the International Space Station won't be throwing any burgers on the grill this Labor Day weekend, but at least they'll get the U.S. holiday off after they clean the space toilet.

A new survey of asteroids near Earth by a NASA space telescope has found a much wider variety of the space rocks than previously thought, with some shiny and bright while others are dark and dull.









Hubble Space Telescope observations of the aftermath of a giant star explosion are offering a new glimpse into the events that follow the collapse of a massive dying star.