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- Green_Valley_(Mars) abstract "Green Valley is a region on Mars within Vastitas Borealis that was chosen as the landing site of NASA's Phoenix lander. It is located at 68.35 degrees north, 233 degrees east. The valley is about 50 kilometres wide but only about 250 metres deep; either it was filled in or was never any deeper than that. The edges are not visible from the middle of the valley.The name "Green Valley" is not officially recognised by the International Astronomical Union. It came from the decision process by which it was selected as Phoenix's landing site: prospective landing areas were color-coded based on how hazardous they were, with red being most hazardous through yellow to green being the safest. Green Valley has relatively few of the large boulders that could potentially have tipped the lander if it had hit one during touchdown.The ground within Green Valley is covered with polygonal features several metres across and roughly ten centimetres high, thought to be caused either by thermal contraction (ice-wedge polygons) or by the effects of wind-blown dust (sand-wedge polygons). Water ice is thought to be just below the surface. During the local winter as much as three feet of carbon dioxide ice is expected to appear on the surface.Shortly before Phoenix's scheduled landing, the Mars Reconnaissance Orbiter photographed a pair of kilometer-tall dust devils in the Green Valley area.".
- Green_Valley_(Mars) thumbnail PSP_001497_2480_RED_detail_25cm.jpg?width=300.
- Green_Valley_(Mars) wikiPageID "16886450".
- Green_Valley_(Mars) wikiPageLength "3408".
- Green_Valley_(Mars) wikiPageOutDegree "15".
- Green_Valley_(Mars) wikiPageRevisionID "593418046".
- Green_Valley_(Mars) wikiPageWikiLink Carbon_dioxide_ice.
- Green_Valley_(Mars) wikiPageWikiLink Category:Valleys_and_canyons_on_Mars.
- Green_Valley_(Mars) wikiPageWikiLink Dry_ice.
- Green_Valley_(Mars) wikiPageWikiLink Dust_devil.
- Green_Valley_(Mars) wikiPageWikiLink HiRISE.
- Green_Valley_(Mars) wikiPageWikiLink International_Astronomical_Union.
- Green_Valley_(Mars) wikiPageWikiLink Journal_of_Geophysical_Research.
- Green_Valley_(Mars) wikiPageWikiLink Mars.
- Green_Valley_(Mars) wikiPageWikiLink Mars_Reconnaissance_Orbiter.
- Green_Valley_(Mars) wikiPageWikiLink NASA.
- Green_Valley_(Mars) wikiPageWikiLink Patterned_ground.
- Green_Valley_(Mars) wikiPageWikiLink Phoenix_(spacecraft).
- Green_Valley_(Mars) wikiPageWikiLink Sand-wedge_polygon.
- Green_Valley_(Mars) wikiPageWikiLink Vastitas_Borealis.
- Green_Valley_(Mars) wikiPageWikiLink File:Mars_from_Phoenix.jpg.
- Green_Valley_(Mars) wikiPageWikiLink File:PSP_001497_2480_RED_detail_25cm.jpg.
- Green_Valley_(Mars) wikiPageWikiLinkText "Green Valley (Mars)".
- Green_Valley_(Mars) wikiPageWikiLinkText "Green Valley".
- Green_Valley_(Mars) wikiPageWikiLinkText "landing site".
- Green_Valley_(Mars) caption "HiRISE image of a patch of land in the Green Valley region showing scattered small boulders and a polygonal fracture pattern.".
- Green_Valley_(Mars) eOrW "E".
- Green_Valley_(Mars) hasPhotoCollection Green_Valley_(Mars).
- Green_Valley_(Mars) latitude "68.35".
- Green_Valley_(Mars) longitude "233".
- Green_Valley_(Mars) nOrS "N".
- Green_Valley_(Mars) name "Green Valley".
- Green_Valley_(Mars) naming "Informal name based on danger assessment map color".
- Green_Valley_(Mars) wikiPageUsesTemplate Template:Cite_journal.
- Green_Valley_(Mars) wikiPageUsesTemplate Template:Mars-stub.
- Green_Valley_(Mars) wikiPageUsesTemplate Template:MarsGeo-Valley.
- Green_Valley_(Mars) wikiPageUsesTemplate Template:Reflist.
- Green_Valley_(Mars) wikiPageUsesTemplate Template:Use_dmy_dates.
- Green_Valley_(Mars) subject Category:Valleys_and_canyons_on_Mars.
- Green_Valley_(Mars) hypernym Region.
- Green_Valley_(Mars) type Settlement.
- Green_Valley_(Mars) comment "Green Valley is a region on Mars within Vastitas Borealis that was chosen as the landing site of NASA's Phoenix lander. It is located at 68.35 degrees north, 233 degrees east. The valley is about 50 kilometres wide but only about 250 metres deep; either it was filled in or was never any deeper than that. The edges are not visible from the middle of the valley.The name "Green Valley" is not officially recognised by the International Astronomical Union.".
- Green_Valley_(Mars) label "Green Valley (Mars)".
- Green_Valley_(Mars) sameAs Vale_Verde_(Marte).
- Green_Valley_(Mars) sameAs m.041145b.
- Green_Valley_(Mars) sameAs Q5603380.
- Green_Valley_(Mars) sameAs Q5603380.
- Green_Valley_(Mars) sameAs 綠谷_(火星).
- Green_Valley_(Mars) wasDerivedFrom Green_Valley_(Mars)?oldid=593418046.
- Green_Valley_(Mars) depiction PSP_001497_2480_RED_detail_25cm.jpg.
- Green_Valley_(Mars) isPrimaryTopicOf Green_Valley_(Mars).