NASA urges people to get outside as Mars won't be this close again for 269 years

NASA urges people to get outside as Mars won't be this close again for 269 years  MLive.com What is a “Habitable” Planet, Anyway?  Discover Magazine (blog) Mars is at opposition, so what does that mean?  University of Wisconsin-Madison What our lives could look like on Mars: Incredible Nasa competition finalists reveal the 3D-printed habitats they believe ...  Daily MailFull coverage

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