Ask someone how the universe began and will probably respond with those three family words: the Big Bang. But as recently as the 1960s, cosmologists discussed this matter. On the other side of the argument to Big Bang was the idea of an immutable universe “stable state”, whose density remained the same by continuously adding new subjects as it expanded.
In the end, the observations ruled out the idea of a stable universe and consolidated the place of the Big Bang in the canon of cosmology. This primary explosion began a process of continuous expansion, and today cosmologists see the universe as a constant flow place.
But now a bold group of cosmologists is questioning all that. To be clear, this is not a return to the stationary state universe, but something completely more intriguing. The researchers propose that the history of the universe may have been marked by mysterious stillness spells. These periods of cosmic stasis could arise in such a way that they replace the entire times of conventional cosmic history or spliced within that timeline.
Bold is certainly the word for this hypothesis. “He is pointing to a family of completely different possibilities that before this we did not realize that it could happen,” he says Adrienne Erickcek At the University of North Carolina in Chapel Hill, which was not involved at work. But if these static periods exist, they could resolve all kinds of riddles, including from which dark matter is made. Even more exciting, these ideas can soon be verifiable …
Article modified on February 12, 2025
This article was amended to include Doojin Kim among the authors of an early article on cosmic stasis.
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