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| July 28, 2011 in History | ||||
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Event: Astronomers identify a Trojan asteroid orbiting on the same path as the Earth around the Sun; it poses to danger to Earth because it sits in a gravitational 'sweet spot' |
Related Topics:
around asteroid astronomers Because Danger Earth identify Orbiting Path Poses same sits Spot Sun Sweet Trojan Related Year: 2011 Related Events: July 28
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More Notable Events on July 28:
1945 Airplane crashes into the Empire State Building 1926 U.S. and Panamanian pact about safeguard of Panama Canal 1900 Hamburger created by Louis Lassing in Connecticut 1866 Metric system becomes a legal measurement system in U.S. 1858 Nadar takes 1st airborne photo, in a balloon |
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