In:
Science, American Association for the Advancement of Science (AAAS), Vol. 325, No. 5936 ( 2009-07-03), p. 58-61
Abstract:
The Phoenix mission investigated patterned ground and weather in the northern arctic region of Mars for 5 months starting 25 May 2008 (solar longitude between 76.5° and 148°). A shallow ice table was uncovered by the robotic arm in the center and edge of a nearby polygon at depths of 5 to 18 centimeters. In late summer, snowfall and frost blanketed the surface at night; H 2 O ice and vapor constantly interacted with the soil. The soil was alkaline (pH = 7.7) and contained CaCO 3 , aqueous minerals, and salts up to several weight percent in the indurated surface soil. Their formation likely required the presence of water.
Type of Medium:
Online Resource
ISSN:
0036-8075
,
1095-9203
DOI:
10.1126/science.1172339
Language:
English
Publisher:
American Association for the Advancement of Science (AAAS)
Publication Date:
2009
detail.hit.zdb_id:
128410-1
detail.hit.zdb_id:
2066996-3
detail.hit.zdb_id:
2060783-0
SSG:
11