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Ice cliffs spotted on Mars

Thick bands of ice (blue) have been spotted in steep cliff faces. NASA/JPL/UNIVERSITY OF ARIZONA/USGS By Paul VoosenJan. 11, 2018 , 2:00 PM For more than a decade, Colin Dundas, a geologist at the U.S. Geological Survey in Flagstaff, Arizona, has had a daily routine: inspecting a dozen or so …

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At Trump’s EPA, once-public chemical safety reviews go dark

By Corbin Hiar, E&E NewsJan. 10, 2018 , 2:15 PM The U.S. Environmental Protection Agency (EPA) appears to no longer be releasing preliminary assessments of potentially hazardous new chemicals or new uses of existing chemicals, according to documents reviewed by E&E News. The development means the public has no way …

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Pacific Northwest salmon are in big genetic trouble

Over the past 7000 years, Chinook salmon in the Columbia River have lost two-thirds of their genetic diversity. Rich Landers/The Spokesman-Review via AP By Robert F. ServiceJan. 10, 2018 , 2:25 PM Chinook salmon, an iconic species in the Pacific Northwest, have lost up to two-thirds of their genetic diversity …

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The key to a successful pregnancy: a tamed immune reaction

Opossums give birth to immature young because of an unchecked inflammatory reaction.  Oliver Griffith By Elizabeth PennisiJan. 10, 2018 , 4:50 PM SAN FRANCISCO, CALIFORNIA—The riskiest moment in any human pregnancy is arguably when the fertilized egg attaches to the womb wall and tries to establish a lifeline between embryo …

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