Asteroid -- pen and ink 8.5 x 11 $75 Asteroid -- pen and ink, 8.5 x 11 $75 CU-Boulder Associate Professor Karen Chin uses a stereomicroscope to analyze fossil burrows likely... CU-Boulder Associate Professor Karen Chin uses a stereomicroscope to analyze fossil burrows, likely... Soundwalk -- ink and colored pencil 7 x 7 $75 Soundwalk -- ink and colored pencil, 7 x 7 $75 Geologist Luann Becker argues that 250 million years ago an asteroid six miles wide crashed into the... Geologist Luann Becker argues that 250 million years ago an asteroid six miles wide crashed into the... Ida fly-by Aug 1993 First discovery of an asteroid with its own moon ( Dactyl ) ! Comet... Ida fly-by Aug 1993 First discovery of an asteroid with its own moon ( Dactyl ) ! Comet... Gaspra fly-by Oct 1991 Second Earth fly-by Dec 1992 Image of Earth/Moon system Asteroid Ida fly-by... Gaspra fly-by Oct 1991 Second Earth fly-by Dec 1992 Image of Earth/Moon system Asteroid Ida fly-by... Dactyl ) ! Comet Shoemaker/Levy 9 impact on Jupiter observed Mar 1993 Arrival at Jupiter in Dec 1995... Dactyl ) ! Comet Shoemaker/Levy 9 impact on Jupiter observed Mar 1993 Arrival at Jupiter in Dec 1995... Venus Feb 1990 First Earth fly-by Oct 1990 Asteroid Gaspra fly-by Oct 1991 Second Earth fly-by Dec... Venus Feb 1990 First Earth fly-by Oct 1990 Asteroid Gaspra fly-by Oct 1991 Second Earth fly-by Dec... impacts Impacts leave craters ( specific structure ) Craters observed on other planets & moons... impacts Impacts leave craters ( specific structure ) Craters observed on other planets & moons... Earth fly-by Oct 1990 Asteroid Gaspra fly-by Oct 1991 Second Earth fly-by Dec 1992 Image of... Earth fly-by Oct 1990 Asteroid Gaspra fly-by Oct 1991 Second Earth fly-by Dec 1992 Image of... specific structure ) Craters observed on other planets & moons Impact craters observed on Earth... specific structure ) Craters observed on other planets & moons Impact craters observed on Earth... Fragments of the Sutter’s Mill meteorite fall collected by NASA Ames and SETI Institute meteor... Fragments of the Sutter’s Mill meteorite fall collected by NASA Ames and SETI Institute meteor... Global GoogleMap GoogleEarth Path Sites Chart Stars Elements 2012 Apr 11 02:48 1242 Zambesia 3.5 TYC... Global GoogleMap GoogleEarth Path Sites Chart Stars Elements 2012 Apr 11 02:48 1242 Zambesia 3.5 TYC... Chart Stars Elements 2012 Apr 11 02:12 2651 Karen 0.6 TYC 0662-00040-1 9.6 6.70 Global GoogleMap... Chart Stars Elements 2012 Apr 11 02:12 2651 Karen 0.6 TYC 0662-00040-1 9.6 6.70 Global GoogleMap...
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