Mars Global Surveyor MOC2-234 to MOC2-245 Releases

<html> <head><title>Mars Global Surveyor MOC2-234 to MOC2-245 Releases</title></head> <body bgcolor="#FFFFFF"> <center> <table border=4> <td align=center> <center><img src="../banner.gif"></center> </td> </table> </center> <center> <h2>Mars Global Surveyor Mars Orbiter Camera (MOC) </center></h2> <hr> <center> <hr> <h2>MOC Images Suggest Recent Sources of Liquid Water on Mars</h2> MGS MOC Releases MOC2-234 to MOC2-245, 22 June 2000 </center> <h3> Gullies seen on martian cliffs and crater walls in a small number of high-resolution images from the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) suggest that liquid water has seeped onto the surface in the geologically recent past. The gully landforms are usually found on slopes facing away from mid-day sunlight, and most occur between latitudes 30° and 70° in both martian hemispheres. The relationship to sunlight and latitude may indicate that ice plays a role in protecting the liquid water from evaporation until enough pressure builds for it to be released catastrophically down a slope. The relative freshness of these features might indicate that some of them are still active today--meaning that liquid water may presently exist in some areas at depths of less than 500 meters (1640 feet) beneath the surface of Mars. The evidence for recent water activity is described in a paper by MGS MOC scientists being published in the June 30, 2000, issue of <a href="http://www.scienceonline.org/">Science.</a> The gullies are rare landforms that are too small to have been detected by the cameras of the Mariner and Viking spacecraft that examined the planet prior to MGS. <hr> <center> <table border=3 cellpadding=8> <tr> <td> <CENTER> <a href="labeled/index.html"> <img src="labeled/gullylables_i2.jpg"></a> MOC2-234 Gully Landform </center> </td> <td> <CENTER> <a href="weeping/index.html"> <img src="weeping/weeping_i2.jpg"></a> MOC2-235 "Weeping" Layer </center> </td> <td> <CENTER> <a href="gorgonum/index.html"> <img src="gorgonum/gorgonum2_c_i2.jpg"></a> MOC2-236 Gorgonum Chaos </center> </td> <td> <CENTER> <a href="sp_pit/index.html"> <img src="sp_pit/sp_pit_i2.jpg"></a> MOC2-237 S Polar Pit </center> </td> <td> <CENTER> <a href="scicover/index.html"> <img src="scicover/scicover_c_i2.jpg"></a> MOC2-238 Noachis Crater </center> </td> <td> <CENTER> <a href="ab1/index.html"> <img src="ab1/ab1_figures_i2.jpg"></a> MOC2-239 Aerobraking Crater </center> </td> </tr> </table> <table border=3 cellpadding=8> <tr> <td> <CENTER> <a href="nirgal/index.html"> <img src="nirgal/nirgal_i2.jpg"></a> MOC2-240 Nirgal Vallis </center> </td> <td> <CENTER> <a href="eg_crater/index.html"> <img src="eg_crater/eg_crater_c_i2.jpg"></a> MOC2-241 E Gorgonum Crater </center> </td> <td> <CENTER> <a href="newton/index.html"> <img src="newton/newton_figure_i2.jpg"></a> MOC2-242 Newton Crater </center> </td> <td> <CENTER> <a href="sirenum/index.html"> <img src="sirenum/sirenum_c_i2.jpg"></a> MOC2-243 Sirenum Trough </center> </td> <td> <CENTER> <a href="age/index.html"> <img src="age/age_figure_i2.jpg"></a> MOC2-244 Age Relations </center> </td> <td> <CENTER> <a href="elysium_p/index.html"> <img src="elysium_p/elysium_p_i2.jpg"></a> MOC2-245 Elysium Crater </center> </td> </tr> </table> <h3><a href="http://www.msss.com/policies/index.html"> MSSS Image Use Policy</a> </h3> </center> <h3> <hr> <a href="http://www.msss.com/"> <img align=middle src="../babylogo.gif"></a> Malin Space Science Systems, Inc. <hr> </h3> </body></html>

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Mars Global Surveyor MOC2-234 to MOC2-245 Releases