Friday, June 1, 2018

Astronomical Calendar: 2018 June

Tunguska Meteorite
Photograph from a Soviet Academy of Science 1927 expedition led by Leonid Kulik shows hundreds of trees fallen from a huge explosion, now known as the Tunguska Event, which occurred on June 30, 110 years ago. Occurring in a remote area of Siberia near the Stony Tunguska River in 1908, no known person actually observed the explosion, which is speculated to have been caused by an air burst of a meteor, asteroid, or comet fragment.
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Astronomical Calendar for 2018 June ---
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Source: Friends of the Zeiss.
              2018 June 1.

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Formerly Astronomical Observatory Coordinator & Planetarium Lecturer, original Buhl Planetarium & Institute of Popular Science, Pittsburgh's science & technology museum from 1939 to 1991.
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