Shuttle Laser Radar

Unlike conventional radar, "lightar" bounces laser beams off objects to learn more about them. The Light In-Space Technology project is using this technique to learn more about the earth, says Tim Suttles, of NASA's Mission to Planet Earth office. Light waves bounce off the earth in a 30/billionth of a second, but reveal information about earth's climate and environment, including the distribution of pollutants and clouds.

NASA's Space Story is made possible by NASA and brought to you by the Internet Multicasting Service and our sponsors.
[audio] .au file (2.1 Mb), .gsm file (0.5 Mb), .ra file (0.2 Mb)