We may have already found evidence of an evolving, dynamic kind of dark energy from the first stars in our universe.
The hunt for elusive dark energy could finally be solved thanks to a strange radiation emission from the universe's earliest stars.
Dark energy, the mysterious entity that dominates the energy of the cosmos and appears to be accelerating the expansion of the universe, presents a cosmic conundrum for scientists. really is. So they are concocting all sorts of possible models, and exploring the observational consequences of those models, in hopes of finding some clue as to what dark energy is and how it works.
Now, new research suggests that we may have already found evidence of an evolving, dynamic kind of dark energy, in the form of the radiation emittedBillions of years ago, the universe was much darker than it is today. It took time for the first stars and galaxies to coalesce and appear, and when they did, they completely transformed the cosmos.Prior to the formation of the first stars, the universe was dominated by a thin fog of neutral hydrogen and helium gas.
In 2018, a team of astronomers claimed to have detected the 21-cm signal emitted when the universe was only 230 million years old. But the signal from that radiation was more than twice as strong as theoretical calculations had suggested. Assuming that the observation is valid , it suggests that something in our understanding of early cosmic history is off.
Most recently, Lu Yin, an astrophysicist at the Asia Pacific Center for Theoretical Physics in South Korea, has suggested a new possibility to explain the strange result.
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