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Arches National Park Geology Tour provides an extensive, visually rich description of the geology of Arches, by Deborah Ragland, Ph.D. See our DVD collection.
This is an illustration of Comet P/Shoemaker-Levy 9 and Jupiter.
Click on image for full size
Courtesy of H.A. Weaver, T.E. Smith (Space Telescope Science Institute) and J.T. Trauger, R.W. Evans (Jet Propulsion Laboratory), and NASA/NSSDC

The Pieces of Comet Shoemaker-Levy 9

The pieces of Comet Shoemaker-Levy 9 received names! However not all of the segments were detected, and some sections broke apart into two or more pieces after the original piece had been named.

These are the names of the pieces and the times at which they crashed into Jupiter. The times are given in Universal Time (Greenwhich Mean Time). The asterisks denote the most significant impacts. The gallery shows the images of these impacts, in order.

ImpactTime (1994)
A16-Jul 19:05B17-Jul 02:00
C17-Jul 06:06D17-Jul 10:28
E17-Jul 14:33F17-Jul 23:30
G*18-Jul 06:51H18-Jul 18:49
K*19-Jul 09:40L*19-Jul 21:35
N20-Jul 09:23P220-Jul 14:13
Q220-Jul 18:57Q120-Jul 19:24
R21-Jul 04:55S21-Jul 14:46
T21-Jul 17:53U21-Jul 21:44
V22-Jul 02:56W22-Jul 07:39


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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA