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Tuesday, January 25, 2022

3D Map of Universe

 Durham University Fiber-Optics Help Largest 3D Map of Universe

BBC News, January 13, 2022

Researchers at the U.K.'s Durham University built a component that helped an international team of scientists produce the largest-ever three-dimensional (3D) map of the universe. The component uses 5,000 optical fibers to widen the field of view of the Dark Energy Spectroscopic Instrument at the Nicholas U. Mayall telescope of Arizona’s Kitt Peak National Observatory. The system splits light from galaxies, stars, and quasars into narrow bands of color, measuring their chemical composition, distance from Earth, and their rate of travel. The final 3D map will enhance understanding of dark energy, which constitutes 70% of the universe and fuels its expansion. Said Durham's Victoria Fawcett, "We're finding quite a lot of exotic systems including large samples of rare objects that we just haven't been able to study in detail before."

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