The planets have been designated b, c, and d. All three planets orbit much closer to Kepler-18, a st...

Magnetic storms set off by the Sun could pose a bigger threat than previously thought to the satelli...

WISE new observations indicate that there are at least 40 percent fewer near-Earth asteroids in tota...

NASA said all debris from the research satellite, the biggest piece of US space junk to fall uncontr...

NASA says a defunct 6-ton satellite has fallen from the sky. The spacecraft crashed through the atmo...

An amateur astronomer has recorded images of the doomed Upper Atmosphere Research Satellite as it tu...

A six-and-a-half tonne defunct climate satellite that has been circling the Earth for the past 20 ye...

Wrapping up their six month space mission, two Russian cosmonauts and a US astronaut have landed bac...

Researchers from the University of Leeds have found meteorite fragments contain a precursor to a key...