NASA @NASA
How can we find out what's going on under the surface of Mars? Meet our @NASAInSight lander. Launching this year, the spacecraft will be our 1st outer space robotic explorer to study the "inner space" of Mars in-depth: its crust, mantle and core. Details: https://t.co/l8mygLdHWn https://t.co/LVv8b7u — PolitiTweet.org