Nasa astronaut Suni Williams, one of two astronauts stuck on the International Space Station, has completed her first spacewalk since arriving.

One of NASA's two stuck astronauts got a much welcomed change of scenery Thursday, stepping out on her first spacewalk since arriving at the International Space Station more than seven months ago.

Sunita Williams, one of the NASA astronauts stuck in space, ventured out to conduct essential maintenance tasks on the International Space Station (ISS).