Want to know the 3D shape of terrain on another planet? Want to study the height and density of Earth's forests? An amazing tool called LIDAR can help! Learn more in this video. This version of the video is presented in several formats of stereoscopic 3D that can be viewed by many kinds of 3D devices, including common red/blue paper glasses that you might have lying around! Just click the "3D" button on the playbar to pick which version works best for you. If you don't see the version you need, click "Other options" from the pop-up. Directions to make your own 3D glasses here: http://stereo.gsfc.nasa.gov/classroom/glasses.shtml This video is public domain and can be downloaded at: http://svs.gsfc.nasa.gov/goto?10757 Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html Or find NASA Goddard Space Flight Center on Facebook: http://www.facebook.com/NASA.GSFC Or find us on Twitter: http://twitter.com/NASAGoddard
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