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Astronomers Detect Mysterious Radio Signals from Outer Space – Solopos.com

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Solopos.com, JAKARTA-Astronomers detect radio signals from deeper space than ever before. This detection uses a cosmic trick first predicted by Einstein.

By using warped spacetime as a magnifying glass, astronomers have captured the most distant signals of their kind from remote galaxies and that can open a window into how our universe formed.

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The record-breaking radio frequency signal, picked up by the Giant Metrewave Radio Telescope (GMRT) in India, originates from the galaxy SDSSJ0826+5630, located 8.8 billion light years from Earth, meaning the signal was emitted when the universe was roughly one-third the size of its present age. this.

The signal is an emission line from the most ancient element in the universe: neutral hydrogen. In the aftermath of the Big Bang, this element existed throughout the cosmos as a turbulent mist from which the first stars and galaxies eventually formed.

Astronomers have long searched for signals far from neutral hydrogen in hopes of finding the moment the first stars began to shine, but the signals have proved difficult to spot, given their incredible distances.

A new study, published Dec. 23 in the journal Monthly Notices of the Royal Astronomical Society, suggests that an effect called gravitational lensing can help astronomers find evidence of neutral hydrogen.

“A galaxy emits many different types of radio signals,” study lead author Arnab Chakraborty (opens in new tab), cosmologist at McGill University in Canada, said in a statement (opens in new tab).

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“Until now, it was only possible to pick up on this particular signal from a nearby galaxy, limiting our knowledge to galaxies closer to Earth.”

This article was published on Bisnis.com with the title “Astronomers Capture Mysterious Radio Signals from Outer Space”

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