H20 at the phoenix landing site

P. H. Smith; L. K. Tamppari; R. E. Arvidson; D. Bass; D. Blaney; W. V. Boynton; A. Carswell; D. C. Catling; B. C. Clark; T. Duck; E. DeJong; D. Fisher; W. Goetz; H. P. Gunnlaugsson; M. H. Hecht; V. Hipkin; J. Hoffman; S. F. Hviid; H. U. Keller; S. P. Kounaves; C. F. Lange; M. T. Lemmon; M. B. Madsen; W. J. Markiewicz; J. Marshall; C. P. McKay; M. T. Mellon; D. W. Ming; R. V. Morris; W. T. Pike; N. Renno; U. Staufer; C. Stoker; P. Taylor; J. A. Whiteway; A. P. Zent

doi:10.1126/science.1172339

H₂0 at the phoenix landing site

P. H. Smith, L. K. Tamppari, R. E. Arvidson, D. Bass, D. Blaney, W. V. Boynton, A. Carswell, D. C. Catling, B. C. Clark, T. Duck, E. DeJong, D. Fisher, W. Goetz, H. P. Gunnlaugsson, M. H. Hecht, V. Hipkin, J. Hoffman, S. F. Hviid, H. U. Keller, S. P. KounavesC. F. Lange, M. T. Lemmon, M. B. Madsen, W. J. Markiewicz, J. Marshall, C. P. McKay, M. T. Mellon, D. W. Ming, R. V. Morris, W. T. Pike, N. Renno, U. Staufer, C. Stoker, P. Taylor, J. A. Whiteway, A. P. Zent

Lunar and Planetary Lab

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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; H₂O ice and vapor constantly interacted with the soil. The soil was alkaline (pH = 7.7) and contained CaCO₃, aqueous minerals, and salts up to several weight percent in the indurated surface soil. Their formation likely required the presence of water.

Original language	English (US)
Pages (from-to)	58-61
Number of pages	4
Journal	Science
Volume	325
Issue number	5936
DOIs	https://doi.org/10.1126/science.1172339
State	Published - Jul 3 2009

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Smith, P. H., Tamppari, L. K., Arvidson, R. E., Bass, D., Blaney, D., Boynton, W. V., Carswell, A., Catling, D. C., Clark, B. C., Duck, T., DeJong, E., Fisher, D., Goetz, W., Gunnlaugsson, H. P., Hecht, M. H., Hipkin, V., Hoffman, J., Hviid, S. F., Keller, H. U., ... Zent, A. P. (2009). H₂0 at the phoenix landing site. Science, 325(5936), 58-61. https://doi.org/10.1126/science.1172339

Smith, PH, Tamppari, LK, Arvidson, RE, Bass, D, Blaney, D, Boynton, WV, Carswell, A, Catling, DC, Clark, BC, Duck, T, DeJong, E, Fisher, D, Goetz, W, Gunnlaugsson, HP, Hecht, MH, Hipkin, V, Hoffman, J, Hviid, SF, Keller, HU, Kounaves, SP, Lange, CF, Lemmon, MT, Madsen, MB, Markiewicz, WJ, Marshall, J, McKay, CP, Mellon, MT, Ming, DW, Morris, RV, Pike, WT, Renno, N, Staufer, U, Stoker, C, Taylor, P, Whiteway, JA & Zent, AP 2009, 'H₂0 at the phoenix landing site', Science, vol. 325, no. 5936, pp. 58-61. https://doi.org/10.1126/science.1172339

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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; H2O ice and vapor constantly interacted with the soil. The soil was alkaline (pH = 7.7) and contained CaCO3, aqueous minerals, and salts up to several weight percent in the indurated surface soil. Their formation likely required the presence of water.",

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AU - Arvidson, R. E.

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AU - Catling, D. C.

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AU - Fisher, D.

AU - Goetz, W.

AU - Gunnlaugsson, H. P.

AU - Hecht, M. H.

AU - Hipkin, V.

AU - Hoffman, J.

AU - Hviid, S. F.

AU - Keller, H. U.

AU - Kounaves, S. P.

AU - Lange, C. F.

AU - Lemmon, M. T.

AU - Madsen, M. B.

AU - Markiewicz, W. J.

AU - Marshall, J.

AU - McKay, C. P.

AU - Mellon, M. T.

AU - Ming, D. W.

AU - Morris, R. V.

AU - Pike, W. T.

AU - Renno, N.

AU - Staufer, U.

AU - Stoker, C.

AU - Taylor, P.

AU - Whiteway, J. A.

AU - Zent, A. P.

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H₂0 at the phoenix landing site

Abstract

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