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Latest Desert varnish Stories

Mars Rover ChemCam Sees Patterns In Martian Rocks
2013-03-20 04:44:02

Lee Rannals for redOrbit.com - Your Universe Online Los Alamos National Laboratory postdoctoral researcher Nina Lanza announced at the 44th Annual Lunar and Planetary Science Conference in The Woodlands, Texas that Curiosity's ChemCam laser could be offering some detailed inside information about the Red Planet's surface. NASA's Curiosity rover has a laser-shooting instrument onboard known as the ChemCam, which is used to vaporize a pinpoint of rock surface. The instrument is able to...

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2011-07-02 07:23:56

NASA scientists are seeing new evidence that suggests traces of water on Mars are under a thin varnish of iron oxide, or rust, similar to conditions found on desert rocks in California's Mojave Desert. Mars could be spotted with many more patches of carbonates than originally suspected. Carbonates are minerals that form readily in large bodies of water and can point to a planet's wet history. Although only a few small outcrops of carbonates have been detected on Mars, scientists believe many...

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2008-12-17 13:45:00

As scientists search for life on Mars, they should take a close look at rock varnish, according to a paper in the current issue of the "Journal of Geophysical Research." The paper describes how a research team led by Kimberly R. Kuhlman, of the Tucson-based Planetary Science Institute, found bacteria associated with rock varnish in an area where the surrounding soils were essentially devoid of life. The study suggests that rock varnish could provide a niche habitat for microbial life on Mars...

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2006-07-05 17:53:46

New research reveals that the dark coating known as desert varnish creates a record of life around it, by binding traces of DNA, amino acids and other organic compounds to desert rocks. Samples of Martian desert varnish could therefore show whether there has been life on Mars at any stage over the last 4.5 billion years. The research, published in the July edition of the journal Geology, reveals that the dark coating known as desert varnish creates a record of life around it, by binding...


Word of the Day
tessitura
  • The prevailing range of a vocal or instrumental part, within which most of the tones lie.
This word is Italian in origin and comes from the Latin 'textura,' web, structure.