Global Surveyor maps Mars’ northern ice
The first accurate, 3-dimensional map of Mars’ north polar region shows an ice cap at the bottom of a bowl-shaped depression.
References:
1998. Laser provides first 3-D view of Mars' north pole. NASA News Release: 98-219. Available at http://ltpwww.gsfc.nasa.gov/tharsis/agu_f98.html.
Zuber, M.T. 1998. Meeting of the American Geophysical Union. December. San Francisco.
Zuber, M.T. . . . J.W. Head, et al. 1998. Observations of the north polar region of Mars from the Mars Orbiter Laser Altimeter. Science 282(Dec. 11):2053.
Sources:
James W. Head
Brown University
Department of Geological Sciences
Providence, RI 02912Maria T. Zuber
Massachusetts Institute of Technology
Department of Earth, Atmospheric, and Planetary Sciences
Cambridge, MA 02139
From Science News, Vol. 154, No. 24, December 12,
1998, p. 373.
Copyright Ó 1998 by Science Service.
copyright 1998
ScienceService