Now and Long Ago at Gale Crater, Mars Illustration
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This pair of drawings depicts the same location on Mars at two points in time: now and billions of years ago. The location is in Gale Crater, near the Red Planet's equator. Since August 2012, NASA's Curiosity Mars rover mission has been investigating rock layers in the crater floor and in the crater's central peak (Mount Sharp) for information recorded in the rocks about ancient environmental conditions and how they changed over time. Slide 1 shows a present-day snapshot of the northern half of Gale Crater. North is to the left. The underlying basement is the crust of Mars that forms the crater's rim (left) and central peak (right). About 3.5 billion years ago, rivers brought sediment into t — NASA JPL · 2016. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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