Many physicists assume that we must be living in a multiverse - but their basic maths may be wrong.
Astrophysicist Martin Rees takes a renewed look at the question of whether or not we live in a universe of universes.
A new study has suggested that the multiverse may be a lot more hospitable to life than previously thought.
Stephen Hawking's final theory of the cosmos was completed shortly before he passed away in March.
A 'cold spot' that has puzzled scientists for years could be the point where two universes collided.
Scientists have put forward a new model in support of the idea that time can run in both directions.
Some universes might provide conditions more favorable to the development of life than our own.
While most scientists focus their efforts on finding signs of life in our own universe some are starting to set their sights elsewhere.
For many years scientists have considered the concept that our universe may be only a single part of a multiverse - now ...