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Euclid area telescope captures 26 million galaxies in first information drop

March 25, 2025
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Euclid area telescope captures 26 million galaxies in first information drop
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A sea of galaxies photographed by the Euclid area telescope

ESA/Euclid/Euclid Consortium/NASA, picture processing by J.-C. Cuillandre, E. Bertin, G. Anselmi

Extraordinary photos from the Euclid area telescope have captured 26 million galaxies, some as far off as 10.5 billion mild years.

Euclid was launched by the European House Company (ESA) in July 2023 and despatched again its first photos in November that 12 months. Throughout a six-year mission, it should picture about one-third of the sky, constructing essentially the most detailed 3D map of the cosmos ever created. As soon as full, this survey will assist to light up how darkish matter and darkish vitality behave on cosmic scales.

ESA has now launched the first large-scale data from this mission, starting with three “deep fields” – areas the place the telescope will peer in additional element than in the remainder of its survey space. These three spots symbolize simply 63 sq. levels of sky, an space equal to that coated by the complete moon 300 occasions over. Within the coming years, Euclid will go over these areas between 30 and 52 occasions, increase an ever extra detailed picture.

Will Percival on the College of Waterloo in Canada says the present batch of photos is lower than half a per cent of what Euclid will collect over the mission, however there’s already a lot for researchers to work with. “For lots of particular person galaxies and their properties, there’s a lot science you are able to do, and that’s as a result of no person has achieved a space-based survey within the close to infrared and the optical like this earlier than,” he says. “It’s not fairly the identical high quality as HST [the Hubble Space Telescope], nevertheless it’s very shut, and we’re not simply pointing and capturing at particular person objects – we’re doing a survey.”

Researchers have already used the Euclid information to search out a whole bunch of robust gravitational lenses. These phenomena are fashioned when the gravity of an object within the foreground distorts mild from a distant galaxy, creating an arc form or perhaps a full ring. Beforehand, scientists needed to hunt these down individually and get HST to level at them and accumulate extra photos. Now astronomers can search the survey information from Euclid and discover many directly, which can assist collect insights into the evolution of galaxies and the universe.

Utilizing an AI mannequin, researchers had been capable of finding and catalogue 500 galaxies with robust gravitational lensing on this first batch of information alone, doubling the whole discovered thus far. “The statistics are phenomenal,” says Percival. “Euclid’s going to get 200 occasions this quantity of information in the long run.”

The information launched to date represents only a single week of photos from Euclid, nevertheless it provides as much as some 35 terabytes – the equal of 200 days of high-quality video streaming. The subsequent batch of information, as a result of be launched late subsequent 12 months, will likely be an entire 12 months’s value of photos overlaying 2000 sq. levels and requiring greater than 2000 terabytes of cupboard space.

every galaxy manually may take over 100 years, so AI has been used to massively pace up the method, says Mike Walmsley on the College of Toronto. “We are able to ask new questions in weeks, slightly than years,” he says.

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

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