Chancellor's Suite Images - photomgr
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A lidar beam, a combination of radar and a laser, shines approximately 50 miles straight up into the night sky through a bright aurora from a building at UAF's Poker Flat Research Range. The beam measures high altitude temperatures in conjunction with a planned rocket launch.

A lidar beam, a combination of radar and a laser, shines approximately 50 miles straight up into the night sky through a bright aurora from a building at UAF's Poker Flat Research Range. The beam measures high altitude temperatures in conjunction with a planned rocket launch.