IMAGE: Caption: Pictured is a micrograph of siderite crystals with the red showing hematite inside. The dark blue is magnatite and pyrite. Credit: Hiroshi Ohmoto/Yumiko Watanabe Red jasper cored from ...
We have an extremely incomplete picture of what these snowball periods looked like, and Antarctic terrain provides different models for what an icehouse continent might look like. But now, researchers ...
predicted such stones would be found on the Red Planet. In a study published in the June 17 issue of the journal Nature, the Utah researchers suggest both the Martian and Utah rocks — known as ...
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