NASA @NASA
⏰Deep Space Atomic Clock ⛽️‘Green’ Propellant Fuel ☢️Space Environment Testbeds Some one-of-a kind @NASA_Technology is set to launch on @SpaceX’s Falcon Heavy rocket later this month! Check out the ground breaking innovations on board: https://t.co/KqpaNcMOZz https://t.co/bqbwq4ZfJZ — PolitiTweet.org