U.S. Department of Energy @ENERGY
Pew! Pew! Was that a rock-vaporizing laser on Mars? How was it made? What's it going to be doing and how did it even get up there? Learn about all of it in our #STEMRising Countdown to Mars chat Tues. Feb 16. https://t.co/PXinma9eAh cc: @ORNL @INL @LosAlamosNatLab — PolitiTweet.org