Solar Panel
Workers put a solar panel onto NASA's MESSENGER spacecraft

These two large solar panels give the MESSENGER spacecraft its power. Image Credit: NASA

      groups of solar cells attached to spacecraft and satellites that collect the sun's energy and change it into electrical power



Sentences:
The Hubble Space Telescope uses solar panels for energy.

Solar panels on rooftops collect energy from the sun that can be used for heat and power.



More Information:
http://www.nasa.gov/mission_pages/stereo/multimedia/deploy.html
http://www.nasa.gov/images/content/161372main_sun_flare_med.gif
http://www.nasa.gov/audience/forkids/kidsclub/flash/games/levelone/KC_Not_Same.html