News tagged with atmospheric oxygen

Viewing crescent Mars

(—The sight of the crescent Moon hanging in the sky above Earth is a familiar one, but this image taken by ESA's Rosetta spacecraft as it passed by the Red Planet in February 2007 captures the rare view of a skinny ...

dateOct 02, 2012 in Space Exploration
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Fools' gold found to regulate oxygen

As sulfur cycles through Earth's atmosphere, oceans and land, it undergoes chemical changes that are often coupled to changes in other such elements as carbon and oxygen. Although this affects the concentration of free oxygen, ...

dateJul 23, 2012 in Earth Sciences
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