by Hadleigh Frost
It is a popular and oft-repeated idea that there may exist universes other than the universe we see around us. These are often called parallel universes and scientists do not know whether they exist. Even so, parallel universes have proved an important plot device in such venerated entertainment as ‘Groundhog Day’ and certain episodes of ‘Futurama’. So could parallel universes actually exist? And should scientists be spending their time thinking about it?
It is a popular and oft-repeated idea that there may exist universes other than the universe we see around us. These are often called parallel universes and scientists do not know whether they exist. Even so, parallel universes have proved an important plot device in such venerated entertainment as ‘Groundhog Day’ and certain episodes of ‘Futurama’. So could parallel universes actually exist? And should scientists be spending their time thinking about it?