
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 it in our #STEMRising #CountdownToMars chat starting at 3pmET. https://t.co/v1emabgIG4 cc: @ORNL @INL @LosAlamosNatLab @NASAMars — PolitiTweet.org