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From greenhouse to icehouse -- reconstructing the environment of the Voring Plateau

From greenhouse to icehouse -- reconstructing the environment of the Voring Plateau

Space & Earth / Earth Sciences

created 18 hours ago | popularity 4.6 / 5 (5) | comments 1

The analysis of microfossils found in ocean sediment cores is illuminating the environmental conditions that prevailed at high latitudes during a critical period of Earth history.


The Meandering Channels of Mars

The Meandering Channels of Mars

Space & Earth / Space Exploration

created Dec 10, 2009 | popularity 4.2 / 5 (6) | comments 5

Sinuous channels on the Martian surface may be evidence of relatively recent rainfall. Researchers plan to test this hypothesis by studying sinuous streams on Earth.


Hypoxia increases as climate warms

Space & Earth / Earth Sciences

created 19 hours ago | popularity 4 / 5 (4) | comments 0

A new study of Pacific Ocean sediments off the coast of Chile has found that offshore waters experienced systematic oxygen depletion during the rapid warming of the Antarctic following the last "glacial maximum" period 20,000 ...


mars surface

Rare Scottish mineral may indicate life on Mars

Space & Earth / Space Exploration

created Dec 10, 2009 | popularity 3.6 / 5 (21) | comments 6

(PhysOrg.com) -- A team of NASA (National Aeronautics and Space Administration) scientists is looking for clues about life on Mars in an earthy clay mineral found only in Aberdeenshire in Scotland.


Penn State scientist at center of a storm

Space & Earth / Earth Sciences

created Dec 09, 2009 | popularity 4 / 5 (8) | comments 4

A few words culled from some hacked e-mails in Britain have generated chaos in the world of climate science -- throwing dark clouds over Pennsylvania State University and stirring up negative publicity for the field that ...


DNA study sheds new light on horse evolution

DNA study sheds new light on horse evolution

Biology / Evolution

created Dec 10, 2009 | popularity 5 / 5 (4) | comments 62

(PhysOrg.com) -- Ancient DNA retrieved from extinct horse species from around the world has challenged one of the textbook examples of evolution - the fossil record of the horse family Equidae over the past ...


Late-surviving megafauna exposed by ancient DNA in frozen soil

Late-surviving megafauna exposed by ancient DNA in frozen soil

Biology / Biotechnology

created 19 hours ago | popularity 4.5 / 5 (2) | comments 0

Extinct woolly mammoths and ancient American horses may have been grazing the North American steppe for several thousand years longer than previously thought. After plucking ancient DNA from frozen soil in ...