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DOE to start building a tool that will 3D map the universe
Next year, the Department of Energy will start building the Dark Energy Spectroscopic Instrument (DESI), which will 3D map millions of galaxies across the universe. The agency-backed project has passed "Critical Decision 3" almost a year after it went through the second phase of approval. That means DOE has OK'd its construction and will provide the funding needed to finish manufacturing its camera's 5,000 10-inch-long cylindrical robots. See that pizza slice-like contraption in the image above? It's one of the camera's ten "petals." Each hole in a petal houses a robot, and the ten petals will carry a total of 5,000. All those machines will point fiber-optic cables to the sky to gather light from distant worlds.
