Mars – Signal Press

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Without new landers or rovers, it's helicopters or bust for NASA's Mars program

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NASA's cost estimate for SR-1 Freedom is $2.1 billion, but that doesn't include the helicopters.

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A martian rock has lots of carbon on it, and it's not clear why

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Biology could explain the find, but there are other potential explanations.

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YOU MAY HAVE MISSED

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Unvaccinated Pennsylvania woman died of measles complications, coroner says

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You Might Be Scheduling Meetings at the Wrong Time. Here’s What Science Says to Do Instead.

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Your AI Strategy Is Only as Strong as Your Leadership — 3 Ways to Turn Executive Vision Into Employee Adoption

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I fixed a tractor using John Deere’s self-repair service. Farmers aren’t sold on it.