A pair of American astronauts stepped outside the International Space Station for a spacewalk to do repairs and upkeep at the orbiting outpost, NASA said.
Two US astronauts successfully fixed a faulty cooling system on Tuesday working outside the International Space Station (ISS).
Two US astronauts today stepped outside the International Space Station for the first of three spacewalks to fix a broken equipment cooling system, NASA said.
Scientists have stumbled upon tranquillityite, a mineral considered unique to the moon.
Day in Pics: 29th December
Showbiz World - December 29, 2014
Stars celebrate Christmas