Al Grauer Archive
Sep 26th: Kasper’s First Comet & Earth Grazer

Sep 12th: Defending Earth & Noctilucent Clouds

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International Asteroid Warning Network has been established to link scientists who are discovering, monitoring, and physically characterizing potentially dangerous asteroids.
Noctilucent Clouds exist at more than 50 miles above the Earth’s surface or about 4 times higher than the tops of the most intense tropical thunder storms.

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