NASA @NASA
Priority mail! We've selected @LockheedMartin to build the Mars Ascent Vehicle, a small, lightweight rocket designed to bring Martian rock collected by @NASAPersevere back to Earth. Here's the working plan for Mars Sample Return: https://t.co/oedt5UYRL6 https://t.co/n3KpfHRQGu — PolitiTweet.org