Astronomers have discovered a remarkable planetary system that challenges long-held assumptions about where planets can ...

The lone planet confirmed to be in the system is squeezed in between the two, orbiting at a distance similar to Earth's distance from the Sun. And, as an added bonus, the planet is orbiting backward ...

After two decades of debate, research confirms that an odd binary star system has an equally odd planetary companion ...

It was not immediately known how much, if any, of the half-ton spacecraft survived the fiery descent from orbit. Experts said ahead of time that some if not all of it might come crashing down ...

A Soviet-era spacecraft plunged to Earth on Saturday, more than a half-century after its failed launch to Venus. Its uncontrolled entry was confirmed by both the Russian Space Agency and European ...

WASHINGTON — A Soviet-era spacecraft plunged to Earth on Saturday, more than a half-century after its failed launch to Venus. The European Union Space Surveillance and Tracking confirmed its ...

SpaceX sent another batch of its Starlink internet satellites to orbit from Florida's Space Coast this morning (May 10), its second launch in a little over six hours. The liftoff followed closely ...

It was not immediately known where the spacecraft came in or how much, if any, of the half-ton spacecraft survived the fiery descent from orbit. Experts said ahead of time that some if not all of ...