skunkbear: Ancient Mars had a thick atmosphere filled with carbon dioxide that kept it warm. Rivers trickled into lakes across its surface. Some researchers think there might even have been an ocean. It looked a lot like ancient Earth. But Mars doesn’t

skunkbear: Ancient Mars had a thick atmosphere filled with carbon dioxide that kept it warm. Rivers trickled into lakes across its surface. Some researchers think there might even have been an ocean. It looked a lot like ancient Earth. But Mars doesn’t

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from: https://anaisalicious.tumblr.com/post/132685546644