The universe may have started out with fewer dimensions than the three we live in, and could still collapse down to one dimension at extremely high energies. The idea could solve some of the thorniest ...

Physicists are increasingly entertaining a radical possibility: our familiar universe of three dimensions of space and one of ...

Did the early universe have just one spatial dimension? That's the mind-boggling concept at the heart of a new theory. Researchers now describe a test that could prove or disprove the "vanishing ...

Our universe has three spatial dimensions – or rather, three that our human senses can actively perceive. Some theories suggest there could be many more dimensions that we're unaware of, mostly ...