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The galaxy that ‘looks like the Milky Way’ is 12B light-years from Earth



According to a recent study, astronomers have found a galaxy that “looks like the Milky Way” in deep space, 12 billion light years away, according to a new study.

The study, published in Nature, details the discovery of the galaxy SPT0418-47, which not only surprised researchers, but also looked similar to other nearby galaxies.

Dr Francesca Rizzo, lead author of the study, said: “This result represents a breakthrough in the field of galaxy formation, showing the structures we observe in near spiral galaxies. There and in our Milky Way are about 12 billion years ago. student from the Max Planck Institute for Astrophysics in Germany, in a statement.

Astronomers using ALMA, of which ESO is a partner, have revealed an incredibly distant galaxy that looks surprisingly like our own Milky Way.  The galaxy, SPT0418-47, attracted to the lens by a nearby galaxy, appeared in the sky as an almost perfect ring of light.  (Credit: ESO)

Astronomers using ALMA, of which ESO is a partner, have revealed an incredibly distant galaxy that looks surprisingly like our own Milky Way. The galaxy, SPT0418-47, attracted to the lens by a nearby galaxy, appeared in the sky as an almost perfect ring of light. (Credit: ESO)

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SPT0418-47 was discovered by Chile’s Atacama Large Millimeter / Submillimeter Array (ALMA) using a technique known as “gravitational lenses”, which helps researchers find objects in the distant universe. . At 12 billion light years from us, SPT0418-47 is 2 billion years younger than the universe itself.

A light year, measuring distances in space, is about 6 trillion miles.

Astronomers found that SPT0418-47 had no spiral arm and was extremely “orderly”, added study co-author Simona Vegetti. It has a rotating and bulging disc, the first time this type of galaxy has been seen deep in space.

“What we found was rather confusing; Despite forming stars at a high rate and therefore where high-energy processes take place, SPT0418-47 is the best ordered galactic disk ever observed in the Early Universe, ”says Vegetti. more. “This result is quite surprising and has important implications for the way we think galaxies evolve.”

To reconstruct the true shape of the galaxy, the researchers used computer models and took images created from “gravitational lenses” and reconstructed them, astonishing Rizzo.

Rizzo explained: “When I first saw recreated images of SPT0418-47, I couldn’t believe it. “A chest has been opened.”

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Although SPT0418-47 has some similar characteristics to other spiral galaxies, it is expected that it will evolve into an elliptical galaxy, the researchers added.

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