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The rise of cosmology’s “big bounce”

It’s a debate that has been going for millennia: how did the universe begin? As this feature from Quanta explains, it is still a pressing question for physicists.

The big bang theory is the leading narrative for how our universe started, but a number of researchers – including Perimeter Director Neil Turok – are strengthening the case for that theory’s biggest rival.

Researchers around the world are putting forward “big bounce” theories and equations that could explain both the origin of our universe and how that leads to its present state.

As Natalie Wolchover writes in this feature article at Quanta, this is just the latest part of a debate that has been raging for millennia.

“There may be a simple — even if hard-to-discover — theory waiting to be discovered, which might explain the most paradoxical features of the universe,” Turok said.

Read the full story here.


Dozens of theorists gathered at a recent conference at Perimeter Institute to probe one of humanity’s oldest questions: how did this all begin?

/Aug 01, 2017

A new model of quantum cosmology shows how this universe might have been born from the one before it – while avoiding the broken physics of the big bang singularity. 

/Aug 16, 2016

A decades-old description of the big bang may not hold up to mathematical scrutiny, according to new work co-authored by researchers from Perimeter Institute and the Albert Einstein Institute.

/Jun 15, 2017