NASA introduces new class of astronauts who could fly to moon, Mars. Here's a look

NASA unveiled 10 recruits who will undergo training to become eligible for future missions that could carry humans deeper into the cosmos than ever.
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Discovery of Neptune: How math found the eighth planet 179 years ago

It might seem unfathomable to us living today, but 179 years ago on this very date, our galaxy, The Milky Way, actually grew ...