We may not live in an infinite 'multiverse' of parallel universes after all.
A change in the density of galaxies can’t explain a cold spot in the sky.
NASA and the European Space Agency. Edited by Noodle snacks
The idea that we live in a 'multiverse' made up of an infinite number of parallel universes has long been considered a possibility.
The Andromeda Galaxy, just part of a finely tuned universe.
Flickr/NASA, ESA, J. Dalcanton, B.F. Williams, and L.C. Johnson (University of Washington), the PHAT team, and R. Gendler
A new book explores some of the big questions of why the universe exists and why it seems fine-tuned for life.
Like a cosmic roulette wheel, we exist because of a very lucky combination of factors.
If some of the laws of physics were only infinitesimally different, we would simply not exist. It almost looks like the universe itself was built for life. But how can that be?
Scientists are searching for collisions between different ‘universe bubbles’ in the cosmic microwave background.
The idea that our universe is just one in a 'multiverse' of parallel universes is increasingly gathering attention from cosmologists. But can we ever test the theory?
If there’s a multiverse out there can we see it?
The recent BICEP2 observations – of swirls in the polarisation of the cosmic microwave background – have been proclaimed as many things, from evidence of the Big Bang and gravitational waves to something…