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Ad Astra Builds “The Martian’s” Rocket Engine

5 Jan 2016, 06:00 UTC
Ad Astra Builds “The Martian’s” Rocket Engine
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Mat Kaplan visits the Ad Astra Rocket Company in Texas where they are perfecting the VASIMIR electric rocket engine. Emily Lakdawalla has created a comprehensive timeline tracing missions throughout the solar system. Bill Nye salutes Planetary Society colleagues who gathered to record a Planetary Radio Extra year in review conversation. The new year’s sky is chock full of planets according to Bruce Betts.

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