But it is almost three years since you reported Anthony Aguirre's work with his graduate student Matthew Johnson: they calculated that we might be able to observe the large - scale signature of other bubble universes in the cosmic microwave background radiation (12 May 2007, p 12). (newscientist.com)
For example, our universe may be just one of many bubble universes with varying laws of nature. (scientificamerican.com)
Nomura notes that we might be able to observe «a remnant from a «collision» of bubble universes in the sky.» (scientificamerican.com)