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How NASA and Sierra Space are preparing for Dream Chaser space plane's 1st flight to ISS.

NASA is considering two ways to get its precious Mars samples back to Earth, but the agency won't pick a winner for another 18 months or so.

Analysis of those samples, which are being collected by NASA's Perseverance rover, could reveal a wealth of data about Mars and its history — including, perhaps, whether the Red Planet has ever hosted life.

NASA is therefore eager to get the Mars material — about 30 cigar-sized, sealed tubes containing rock cores and sediment — home, and then on to laboratories around the world. But doing so has proven to be more difficult, and far more expensive, than originally envisioned.

Source: www.space.com

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