http://themis.la.asu.edu/zoom-20031218a.html
after seeing the long shallow crater in that picture, I wonder if the incoming asteroid skipped off of Mars, and back into space. What an angle it must have been at!! Very cool. JD > > MARS ODYSSEY THEMIS IMAGES > December 10-19, 2003 > > > o Mars South Polar Layered Deposits (Released 10 December 2003) > http://themis.la.asu.edu/zoom-20031210A.html > > o Solar storms, devils, dunes, and gullies (Released 12 December 2003) > http://themis.la.asu.edu/zoom-20031212a.html > > o Sea of Sand in Juventae Chasma (Released 17 December 2003) > http://themis.la.asu.edu/zoom-20031217a.html > > o Asymmetric Crater (Released 18 December 2003) > http://themis.la.asu.edu/zoom-20031218a.html > > Asymmetric craters such as the one in the center of > this image are fairly rare. The more typical symmetric craters > are formed when meteors impact a surface over a wide range of > angles. Only very low impact angles (within 15� of horizontal) > result in asymmetric structures such as this one. The bilateral > symmetry of the ejecta, like two wings on either side of the > elliptical crater, is typical of oblique impacts. The small > crater downrange from the main crater could have been caused by > the impactor breaking apart before impact or possibly a > 'decapitation' of the impactor as it hit with the 'head' > traveling farther to form the smaller structure. > > o Strange Erosional Features (Released 19 December 2003) > http://themis.la.asu.edu/zoom-20031219a.html > > > All of the THEMIS images are archived here: > > http://themis.la.asu.edu/latest.html > > NASA's Jet Propulsion Laboratory manages the 2001 Mars Odyssey mission > for NASA's Office of Space Science, Washington, D.C. The Thermal Emission > Imaging System (THEMIS) was developed by Arizona State University, > Tempe, in collaboration with Raytheon Santa Barbara Remote Sensing. > The THEMIS investigation is led by Dr. Philip Christensen at Arizona State > University. Lockheed Martin Astronautics, Denver, is the prime contractor > for the Odyssey project, and developed and built the orbiter. Mission > operations are conducted jointly from Lockheed Martin and from JPL, a > division of the California Institute of Technology in Pasadena. > > > > ______________________________________________ > Meteorite-list mailing list > [EMAIL PROTECTED] > http://www.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list [EMAIL PROTECTED] http://www.pairlist.net/mailman/listinfo/meteorite-list
