SciTechTalk: 1908. Target: Earth

Sunday, July 29, 2012 - 06:30 in Astronomy & Space

JIM ALGAR || United Press International When astronomers consider cosmic collisions having impacts on the Earth, their eyes turn either to events of the distant past -- like the asteroid impact 65 million years ago that may have pushed the dinosaurs to extinction -- or to the uncertain future, as telescopes and satellites search for so-called Near Earth Objects that might someday represent a collision threat to our planet.

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