They created the most detailed 3D map of the universe for the first time | Video

https://mundo.sputniknews.com/20220115/crean-por-primera-vez-el-mapa-3d-mas-detallado-del-universo-video-1120368113.html

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space, universe, 🪐 astronomy, map, galaxy, cartography

The Dark Energy Spectroscopy (DESI), a scientific research instrument for astronomical studies of distant galaxies tasked with mapping the expansion of space and investigating dark energy, has created the most detailed 3D map of the universe.

Just seven months into its mission, DESI has already been able to create a stunning 3D image of the galaxy that surrounds Earth after cataloging and mapping it. More than 7.5 million galaxiesAnd more than a million new items are added every month.

By the time the survey is fully completed in 2026, DESI is expected to map more than 35 million galaxies, providing astronomers with a huge library of data. Astrophysicist Julian Jay, of Lawrence Berkeley National Laboratory in California, has to explain What DESI has been able to draw is thanks to 5,000 optical fibers, each individually controlled and positioned by a small robot.

“In the distribution of galaxies on the 3D map, there are huge clusters, filaments and voids. They are the largest structures in the universe. But inside them, you find a trace of the early universe and its expansion history since then,” he explained.

These optical fibers, which must be positioned precisely to within 10 microns — or less than the width of a human hair — then pick up flashes of light as they filter back to Earth from the universe, forming a network that captures images from the color spectrum of millions of galaxies, covering more than a third of the entire sky. Additionally, structures mapped by DESI can be reverse engineered to see what initial configuration you started with.

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DESI’s main goal is to reveal more about the dark energy that is believed to make up 70% of the universe, as well as to speed up its expansion. This dark energy It can lead galaxies to infinite expansion, collapse on themselves, or something in between, and cosmologists are eager to narrow the choices.

Now astronomers and researchers will have to wait for DESI to finish its mapping work to start benefiting from an in-depth look at space. Although other DESI-enhanced research is already exploring whether smaller galaxies have their own black holes like larger galaxies.

Astronomers are confident in DESI’s ability to detect “fainter and redder objects” because they are finding a large number of exotic systems, including large samples of rare objects that they have not yet been able to study in detail before.

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