![]() The map can be seen on the Berkeley Lab's website here. "And then we will find so much amazing stuff about galaxies. "All this data is just there, and it's just waiting to be analyzed," Ragadeepika Pucha, a graduate student in astronomy at the University of Arizona working on DESI, said in a press release. The DESI survey has already catalogued more than 7.5 million galaxies and is expected to have logged more than 35 million when the survey ends in 2026. Meanwhile, other scientists are using its data to analyze black holes and find out whether small ones inhabit the centers of small galaxies, in the same way that large ones are known to inhabit the centers of large galaxies. Will it keep expanding forever? Will it slow down and collapse into itself like a reverse Big Bang? Will it keep expanding faster and faster until everything rips apart? It's still uncertain.ĭESI's universe map is only 10 percent finished. Scientists hope to use DESI and the universe's historic expansion data to better understand dark energy- the mysterious force that's making the universe bigger and bigger all the time.īy getting a better understanding of dark energy, physicists will be able to predict how the universe will end. Fact Check: Did an Astronaut Smuggle a Gorilla Suit Into Space?.What to Know About Potentially Hazardous Asteroids and Future Impact Risks.New Study Squashes Idea That Meteorite Represented Life on Mars.But within them, you find an imprint of the very early universe, and the history of its expansion since then." They're the biggest structures in the universe. "In the distribution of the galaxies in the 3D map, there are huge clusters, filaments, and voids. "There is a lot of beauty to it," Berkeley Lab scientist Julien Guy, describing the 3D map that DESI has created so far, said in the press release. These patterns are like "echoes" of the early universe, and scientists can trace them back in time to understand the history of the expansion of space, according to a Berkeley Lab press release. Specifically, scientists are looking to see how much light from these galaxies has been redshifted-stretched out so that it appears red-by the expansion of the universe in the billions of years it has taken for the light to reach Earth.īy measuring this phenomenon scientists can see how far away galaxies are, create a 3D map of the universe, and start to chart patterns like clusters of galaxies or large voids where there are none. These fibers extend down to 30 detectors, which then receive the light that's passed to them and turn it into data that scientists can observe. ⬇️ /dimPVO5cvl- Berkeley Lab January 14, 2022 □ #DarkEnergy Spectroscopic Instrument (DESI) Creates Largest #3D Map of the Cosmos □☄️□✨ ![]()
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