Spacewalk
Astronaut floating in space with Earth in the background

Astronaut Ed White made the first American spacewalk in 1965. Image Credit: NASA

      any activity done outside the spacecraft



Sentences:
The astronauts went on a five-hour spacewalk to repair the Hubble Space Telescope.

Astronauts train for spacewalks in a large pool called the neutral buoyancy laboratory.



More Information:
http://spaceflight.nasa.gov/shuttle/reference/faq/eva.html   →
http://apod.nasa.gov/apod/ap050604.html   →
http://starchild.gsfc.nasa.gov/docs/StarChild/space_level2/spacewalk.html   →
http://www.nasa.gov/mission_pages/station/expeditions/expedition14/exp14_evas.html
http://www.nasa.gov/mission_pages/station/expeditions/expedition14/exp14_eva_112206.html