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K/T impactor source identified |
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Written by Southwest Research Institute (SwRI)
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Friday, 07 September 2007 |
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The impactor believed to have wiped out the dinosaurs and other life forms on Earth some 65 million years ago has been traced back to a breakup event in the main asteroid belt.
A joint U.S.-Czech team from Southwest Research Institute (SwRI) and Charles University in Prague suggests that the parent object of asteroid (298) Baptistina disrupted when it was hit by another large asteroid, creating numerous large fragments that would later create the Chicxulub crater on the Yucatan Peninsula as well as the prominent Tycho crater found on the Moon. |
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JPL Solar System Ambassadors Program |
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Written by Administrator
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Wednesday, 05 September 2007 |
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ANNOUNCEMENT OF OPPORTUNITY The Jet Propulsion Laboratory (JPL) Solar System Ambassadors Program invites you to apply to become an Ambassador to the public for calendar year 2008. Highly motivated individuals will be given the opportunity to represent JPL as volunteer Solar System Ambassadors to the public for a one-year, renewable term beginning January 1, 2008. Applications will be accepted from September 1 through September 30. The Solar System Ambassadors Program is an informal education effort accomplished by motivated volunteers across the nation who communicate NASA's exciting discoveries and plans for future exploration of the solar system and beyond to general public audiences. These volunteer Ambassadors become an extended part of each space exploration mission's team and an important interface between the NASA community and the populace at large. |
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Written by University of Arizona
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Wednesday, 29 August 2007 |
 The High Resolution Imaging Experiment (HiRISE) camera operated at The University of Arizona released this new view of the dark pit on Arsia Mons (PSP_004847_1745) today. This view is not the entire HiRISE image, but a close-up of the pit on the Arsia Mons volcano. The new image confirms that the dark pit really is a vertical shaft that cuts through lava flow on the flank of the volcano. Such pits form on similar volcanoes in Hawaii and are called The High Resolution Imaging Experiment (HiRISE) has confirmed that a dark pit seen on Mars in an earlier HiRISE image really is a vertical shaft that cuts through lava flow on the flank of the Arsia Mons volcano. Such pits form on similar volcanoes in Hawaii and are called "pit craters." The HiRISE camera, orbiting the red planet on NASA's Mars Reconnaissance Orbiter, is the most powerful camera ever to orbit another planet. It is operated at The University of Arizona in Tucson. HiRISE Principal Investigator Alfred McEwen of the UA's Lunar and Planetary Laboratory and his team released the new image of the dark pit on Arsia Mons and several other stunning images today on the HiRISE Web site, http://hirise.lpl.arizona.edu. New HiRISE images are released on the site every Wednesday. |
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Last Updated ( Saturday, 01 September 2007 )
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