By Peter John Cattermole
Mars has occupied a really unique position within the background of medical considering because the overdue 16th century.
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Extra resources for Mars - The Mystery Unfolds
Much of the orbit-to-orbit variation observed by the MGS accelerometer within the thermosphere appears to be explained by global-scale variation with respect to longitude at these heights. 7, peaks occurring around longitudes that correspond to the highlands of The that the considerable relief of these regions effectively E o iffltov* . 5 The I 21 I 24 L 3 6 (h) diurnal variation of atmospheric temperature meas- ured by the top, middle, and bottom mast thermocouples, from 06:00 LST on 06:00 LST on sol 26.
All K lr 6 ™ ... ». 5 Cimmeria. 212 99 Channel networks in the cratered uplands of Mars. 95 S = ! i l^* 1 Fi 9 ure 3 6 Rid 9 ed P lains southwest of the Hellas impact basin. Viking orbiter image 361s13. 23 W. : - W 21 PHYSIOGRAPHIC PROVINCES most obvious being Hellas (diameter 1800 km) and Argyre (diameter 800km). The Isidis basin measures 1900 km across but has been substantially modified and is therefore visually less striking. The larger basins are multi-ringed and of dimensions similar to those on the Moon.
For the first time, the successful landing of the Pathfinder probe has enabled scientists to characterize the Martian surface at the mouth of an ancient flood channel. A prominent rise to the north of the landing site appears to represent a debris tail deposited on the downstream side of two streamlined hills, named Twin Peaks. Most of the clasts found at the site probably derived from floods debouching from the Tiu Vallis system, being sourced in the cratered highlands to the south (Nelson & Greeley 1999).