We know that our Universe is expanding, but how fast? Is it getting faster or slowing down? And why? The Dark Energy Spectroscopic Instrument (DESI), a state-of-the-art instrument on the Mayall telescope in Arizona, is equipped with 5,000 robotic optical fibers to capture the lights from 5,000 galaxies at one time. It will observe 30 million galaxies over the next 5 years, producing the largest data set of galaxies with high-resolution measurements of their colors. Find out all about DESI and how we will make a 3D map of the structure of our Universe, understand its expansion and tackle some of the biggest mysteries in cosmology; dark matter and dark energy.
Speaker: Dr. Chia-Hsun Chuang, Kavli
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