Four rockets launch from Poker Flat Research Range

Four NASA rockets launched from Poker Flat Research Range during a three-hour span on the morning of Feb. 18, 2009. The rockets, carrying payloads that emitted glowing vapor trails that help scientists study turbulence in the upper atmosphere, launched at 12:59 a.m., 1:29 a.m., 1:59 a.m., and 2:49 a.m. Alaska Standard Time. The whitish trails, some resembling corkscrews in the sky, were visible in many parts of interior and northern Alaska.

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<p><a href="http://www.physorg.com/news154264432.html">Four rockets launch from Poker Flat Research Range</a></p> <p>Four NASA rockets launched from Poker Flat Research Range during a three-hour span on the morning of Feb. 18, 2009. The rockets, carrying payloads that emitted glowing vapor trails that help scientists study turbulence in the upper atmosphere, launched at 12:59 a.m., 1:29 a.m., 1:59 a.m., and 2:49 a.m. Alaska Standard Time. The whitish trails, some resembling corkscrews in the sky, were visible in many parts of interior and northern Alaska.</p>