Robotic Arm
An astronaut is anchored to a foot restraint on the International Space Station's Canadarm2, against the blackness of space and Earth’s horizon

Astronaut Stephen K. Robinson rides on a robotic arm that is attached to the International Space Station. Image Credit: NASA

      a mechanical arm designed for grabbing, holding and moving objects



Sentences:
The space station has a robotic arm that helps astronauts lift large objects while in space.

Robotic arms are used to build cars in some factories.



More Information:
http://science.nasa.gov/headlines/y2001/ast18apr_1.htm   →
http://www.nasa.gov/multimedia/imagegallery/image_feature_433.html
http://www.nasa.gov/multimedia/imagegallery/image_feature_282.html
http://www.nasa.gov/audience/foreducators/stseducation/stories/Matt_Pepper_Profile.html
http://www.nasa.gov/mission_pages/shuttle/behindscenes/rms_anniversary.html
http://www.nasa.gov/mission_pages/mer/images/20070807-spirit_prt.htm