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December 30,2008
Death of Steve Ostro (1946-2008)
NEA studies has lost one of our most brilliant scientists and devoted friends with the death of Steve Ostro, who reinvented the science of radar astronomy and gave us some of our most memorable images of NEAs.
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December 21,2007
Tunguska Revision, and a Possible NEA Impact on Mars
A proposed downsizing of the energy of the 1908 Tunguska airburst implies an increase in the expected frequency of such impacts. In addition, a possible Mars-impactor has been discovered by the Spaceguard Survey.
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