STS-129

A NASA contest for the next five weeks is looking for the best photographs of the Earth taken by astronauts aboard the International Space Station (ISS).

The Tournament Earth competition was kicked off by the agency's Earth Observatory and features images from more than 20 years of snapshots by spacewalkers.

Two American astronauts completed a lengthy spacewalk on March 29 to replace old hoses on the International Space Station's cooling system and make other equipment upgrades, footage from the U.S. space agency NASA showed.

Two US astronauts on March 1 stepped out on the third spacewalk to prepare the International Space Station for the arrival of more commercial spacecraft in the coming years.
      
Barry Wilmore and Terry Virts began the spacewalk at 6:52 am (1152 GMT).
      

Two American astronauts on Feb. 25 stepped out on the second of three spacewalks to prepare the International Space Station for the arrival of commercial capsules ferrying astronauts in the coming years.
      

The six astronauts at the International Space Station are safe and are taking shelter in the Russian segment after an alarm went off on the US side of the orbiting outpost, NASA said Jan. 14.