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Astronomers have created the largest 3D map of hydrogen light from the early universe. Using the Hobby-Eberly Telescope Dark Energy Experiment, the team mapped a "sea of light" from faint galaxies existing 9 to 11 billion years ago
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Paper
iopscience.iop.org/article/10.3...
An international team of scientists, including Penn State astronomers, have used data from the Hobby-Eberly Telescope Dark Energy Experiment to construct the largest, most accurate 3D map yet of the l...