This week on Energy.gov, we’ve covered space and beyond -- from technologies at our National Labs that are working to prevent traffic jams in space, to infographics about collecting space-based solar power, to the real-world scientific counterparts to lightsabers. Throughout it all, we've featured experts at the Energy Department and National Labs who are contributing to the U.S. space program. This photo of the Milky Way Galaxy was taken near the Cerro Tololo Inter-American Observatory, about 500 km north of Santiago, Chile. The observatory is home to a four-meter telescope, part of the Dark Energy Survey, which is a research collaboration between institutions from the U.S., Brazil, U.K., Germany, Spain and Switzerland. The survey aims to explore the dynamics of the universe’s expansion. | Photo by Reidar Hahn, Dark Energy Survey, Fermilab.