Photosynthesis before oxygen may have kept the early Earth warm

Photosynthesis. Petr Pakandl / WikiCommons reader comments 8 Share this story “The so-called ‘faint young Sun paradox’ has long been a topic of debate because its resolution bears important ramifications for the basic factors structuring climate regulation and the long-term habitability of Earth and Earth-like exoplanets.” So begins Chris Reinhard’s new paper in Nature. Reinhard […]

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NASA and Amiga history meet in an eBay listing

reader comments 24 Share this story A beautiful friendship: Amiga 2500 boasting some NASA seals. eBay seller vrus Seller vrus writes that there are two specialized cards on this machine installed to read/write telemetry data. “One is called an Amiga 2000 Serial Interface, and the other is an Amiga 2000 Remote DMA Output Controller. They […]

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Energy Secretary Perry agrees to extension on pro-coal, nuclear rulemaking

Enlarge / WASHINGTON, DC – JANUARY 19: Former Texas Governor Rick Perry, President-elect Donald Trump’s choice as Secretary of Energy, testifies during his confirmation hearing before the Senate Committee on Energy and Natural Resources on Capitol Hill January 19, 2017 in Washington, DC. (Photo by Aaron P. Bernstein/Getty Images) Getty Images reader comments 81 Share […]

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Archaeologists find mysterious, 4,000-year-old dog sacrifices in Russia

reader comments 43 Share this story Enlarge / A map of the area on the northern Russian steppes where the sacrificial dogs were found. The Krasnosamarskoe settlement was a tiny ritual center, part of the larger Indo-European Srubnaya culture in the late Bronze Age. Journal of Anthropological Archaeology 4,000 years ago in the northern steppes […]

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