Water at the Phoenix landing site. Peter Hollingsworth Smith

ISBN: 9781109091403

Published:

NOOKstudy eTextbook

38 pages


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Water at the Phoenix landing site.  by  Peter Hollingsworth Smith

Water at the Phoenix landing site. by Peter Hollingsworth Smith
| NOOKstudy eTextbook | PDF, EPUB, FB2, DjVu, audiobook, mp3, ZIP | 38 pages | ISBN: 9781109091403 | 9.72 Mb

The Phoenix mission investigated patterned ground and climate in the northern arctic region of Mars for 5 months starting May 25, 2008. A shallow ice table was uncovered by the robotic arm in a nearby polygons edge and center at depths of 5-15 cm.MoreThe Phoenix mission investigated patterned ground and climate in the northern arctic region of Mars for 5 months starting May 25, 2008. A shallow ice table was uncovered by the robotic arm in a nearby polygons edge and center at depths of 5-15 cm.

In late summer snowfall and frost blanket the surface at night- water ice and vapor constantly interact with the soil. Analysis reveals an alkaline Ph with CaCO3, aqueous minerals, and salts making up several wt% of the soil- liquid water is implicated as having been important in creating these components. In combination with the oxidant perchlorate (∼1 wt%), an energy source for terrestrial microbes, and a prior epoch of higher temperatures and humidity, this region may have been a habitable zone.



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