Huge Spirals Found on Mars

Huge Spirals Found on Mars

Huge Spirals Found on Mars—Evidence of New Lava
Type? Coils hint that volcanoes, not ice, shaped odd red
planet region. National Geographic, April 26, 2012
http://news.nationalgeographic.com/news/2012/04/120426-mars-new-lava-coils-volcanoes-ice-life-space-science/

New form of Mars lava flow dicovered, ScienceDaily
April 26, 2012, http://www.sciencedaily.com/releases/2012/04/120426143804.htm
and http://esciencenews.com/articles/2012/04/26/new.form.mars.lava.flow.dicovered

The press release is:
Graduate Student Discovers New Form of Lava Flow
on Mars, Arizona State University College
April 25, 2012, http://www.newswise.com/articles/graduate-student-discovers-new-form-of-lava-flow-on-mars

The paper is:
Ryan, A. J., and P. R. Christensen, 2012, Coils and
Polygonal Crust in the Athabasca Valles Region, Mars,
as Evidence for a Volcanic History. Science, vol. 336,
no. 6080, pp. 449-452. http://www.sciencemag.org/content/336/6080/449

Best wishes,

Paul H.