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High school students can learn about high-tech career options at the Science, Technology, Engineering and Mathematics (STEM) Career Expo from 5:30 to 8:30 p.m. on Wednesday, April 11, at the Department of Energy’s Fermilab.

Two teams of physicists at the U.S. Department of Energy’s Fermilab and Lawrence Berkeley National Laboratory (Berkeley Lab) have independently made the largest direct measurements of the invisible scaffolding of the universe, building maps of dark matter using new methods that, in turn, will remove key hurdles for understanding dark energy with ground-based telescopes.