
NASA astronaut Chris Cassidy, Expedition 36 flight engineer, poses for a photo while floating freely in the Kibo laboratory of…

NASA astronaut Chris Cassidy, Expedition 36 flight engineer, looks at a computer monitor in the Kibo laboratory of the International…

The Soyuz TMA-08M spacecraft with Expedition 36 Commander Pavel Vinogradov of the Russian Federal Space Agency (Roscosmos), Flight Engineer Alexander…

Backdropped by a blue and white part of Earth and the blackness of space, International Space Station solar array panels…

It took 35 years to reach interstellar space, but it will take 40,000 years for Voyager 1 to be closer…

Voyager 2 launched on Aug. 20, 1977, about two weeks before the Sept. 5 launch of Voyager 1. Why the…

View from the cockpit of one of twelve Russian search and rescue helicopters as they take off from the city…

Russian search and rescue helicopters are seen as they fly over Kazakhstan, Sept. 10, 2013, from the city of Karaganda…

Russian search and rescue helicopters are seen as they fly over Kazakhstan, Sept. 10, 2013, from the city of Karaganda…

Russian search and rescue helicopters are seen as they fly over Kazakhstan, Sept. 10, 2013, from the city of Karaganda…