In pictures: Astronauts' first spacewalk

1 of 4 Two astronauts on the Space Shuttle Discovery have taken these pictures of their first ever walk into space

2 of 4 Soichi Noguchi and Steve Robinson left the shuttle so they could inspect it for damage which may need repairing

3 of 4 In this picture, Steve Robinson can be seen suspended from Discovery's robotic arm

4 of 4 And if you look closely at this one you can see one of the astronauts' gloved hands holding a putty knife which is being used in the repair test