Some scientists have held the view that we live in a finely tuned universe, and should just one constant in its composition be even slightly different to the status quo, the universe as we know it, and even life, would not exist.
Fred Adams, professor of physics at the University of Michigan, has put this idea to the test, and found that stars that can support life could form in circumstances where the fundamental constants vary quite widely from the universe’s current values.
The idea that certain aspects of our universe make it uniquely suited to life has never been properly tested, says Fred Adams of the University of Michigan in Ann Arbor. “You hear people say our universe is fine-tuned for life, that stars are rare and couldn’t form if certain things were different,” he says. “The truth is, no one has done the calculations.” Adams has now rectified that situation and found that it is not unusual for stars to form that can support life.
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