Two NASA astronauts are floating around in the void outside the International Space Station Friday ... watch the remainder of the spacewalk in the window below. The Friday spacewalk marks ...

The research involved collecting over 800 samples from various surfaces on the International Space Station The International Space Station may be making astronauts sick, according to a new study.

The International Space Station (ISS) where two NASA astronauts ... ongoing input of those healthy sources of microbes from the outside,' Knight said in a statement. 'If we really want life ...