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10 April 2014 11:44 am ,
Vol. 344 ,
The Pyrenean ibex, an impressive mountain goat that lived in the central Pyrenees in Spain, went extinct in 2000. But a...
Tight budgets are forcing NASA to consider turning off one or more planetary science projects that have completed their...
Ebola is not a stranger to West Africa—an outbreak in the 1990s killed chimpanzees and sickened one researcher. But the...
In an as-yet-unpublished report, an international panel of geoscientists has concluded that a pair of deadly...
Tropical disease experts tried and failed before to eradicate yaws, a rare disfiguring disease of poor countries. Now,...
Since 2002, researchers have reported that agricultural communities in the hot and humid Pacific Coast of Central...
Balkan endemic kidney disease surfaced in the 1950s and for decades defied attempts to finger the cause. It occurred...
- 10 April 2014 11:44 am , Vol. 344 , #6180
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Homegrown Organic Matter Found on Mars, But No Life
24 May 2012 1:58 pm
When Curiosity, NASA's next Mars rover, arrives at the Red Planet on 6 August, it will be searching for the ancient remains of environments that could have supported microscopic life eons ago. The rover will also be checking for a particular kind of fossil: molecular traces of long-dead life. But a discovery announced online this week in Science will add another layer of complexity to the interpretation of any geochemical markers of past life that Curiosity may find. Researchers have discovered organic matter encased in once-molten martian rocks, demonstrating that the planet has been producing its own organic matter for eons with no help from life.