FOX News: NASA’s Mars helicopter whirls through tests on way to 2020 launch

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NASA’s Mars helicopter whirls through tests on way to 2020 launch https://www.foxnews.com/science/nasas-mars-helicopter-whirls-through-tests-on-way-to-2020-launch Jun 10th 2019, 13:54
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NASA’s first Mars helicopter is getting close to final approval for launch after passing several key tests.

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