... were on the ejecta blanket of South RayCrater, a huge feature about ten kilometers ... traverse, Young and Duke drove to North RayCrater, a kilometer-sized feature that ...
... The surface displays numerous impact craters many of which have extensive bright ray systems. ... The craters lacking ray systems are probably older than those showing rays. ...
... These characteristics included the amount of cratering, structure and size of craters, the amount, distribution, and sizes of ejecta, mechanical properties of the surface such as bearing strength, cohesiveness, compaction, etc. ...
... craters) are visible at the summit of Ascraeus Mons -- while impact craters on the sunlit side of Phobos ' surface can also be ... Tomorrow's picture: SN 1006: Pieces of the Cosmic Ray Puzzle . | Archive | Index | Search | ...
... After 64.5 hours of flight, impact occurred in the crater Alphonsus. The spacecraft performance was excellent. ... A cathode-ray tube reconstructed the original image, which was then photographed on 35-millimeter film. ...
... The gamma ray spectrometer and the neutron spectrometer will return global data on elemental abundances, which will be used to ... Determination of the relationship of outgassing sites with crater age and tectonic features may be possible. ...
... later use its Alpha Proton X-Ray Spectrometer (APXS) instrument to conduct a study ... of Yogi will be investigated by the Alpha Proton X-Ray Spectrometer. 81085_full.jpg ...