A little over 240 years ago, birds were the only things that could fly above the ground untethered without eventually falling. That all changed in 1783 when Jean-François Pilâtre de Rozier and ...

A little over 240 years ago, birds were the only things that could fly above the ground untethered without eventually falling ...

The failed Soviet spacecraft Kosmos 482 could crash to Earth overnight tonight after more than 50 years in the wrong orbit.

Animation showing the polar orbit of the exoplanet around the two brown dwarfs. A polar orbit is a trajectory where an object, such as a planet, revolves around another by passing over its poles.

Yahoo News spoke with an astronomer about approximately where and when a half-ton Soviet-era spacecraft stuck in Earth's ...

Cosmos 482 was launched to space by the Soviet Union in 1972 and was supposed to reach Venus. It has been stuck in Earth's orbit.

Kosmos-482, a failed mission to Venus from the former Soviet Union that stalled in Earth orbit in the 1970s, is about to fall ...