
U.S. Department of Energy @ENERGY
📬SPECIAL DELIVERY: The largest high-performance optical lens ever created has arrived at @SLAClab! It will be part of the @LSSTproject, a 10-year survey of the sky to help scientists unlock mysteries of the universe like dark matter and dark energy. 👉 https://t.co/XQcppkDbV7 https://t.co/7whxZXVjRD — PolitiTweet.org