NASA @NASA
Before studying the interior & subsurface of Mars, @NASAInsight must withstand crucial testing in a unique lab here on Earth. Explore this testbed in 360 and watch as the spacecraft navigates the simulated Martian environment: (Best in @YouTube w/ 🔊☝️) https://t.co/hYvdWiR5Sk https://t.co/1iPOH7 — PolitiTweet.org