The thick, mineral-rich layers of clay found on Mars suggest that the Red Planet harbored potentially life-hosting environments for long stretches in the ancient past, a new study suggests.

Past Auction Pieter Nason Dutch, 1612–1688 Portrait of a boy (Willem van Liere?) as Mars, in classical dress with a cuirass, sword and halberd, in a landscape, 1669 Medium oil on canvas Size 86.3 x 68 ...

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