It's a plot device beloved by science fiction: our entire universe might be a simulation running on some advanced ...

The universe is soaked in weak-but-persistent magnetic fields. Despite decades of research, astronomers still aren't exactly sure where these magnetic fields came from. But new research suggests they ...

In the strange world of quantum mechanics, objects can exist in several states at once. This concept, called superposition, is one of the most puzzling features of quantum theory. A particle, for ...

Water may have emerged in the universe far earlier than scientists thought — and it could mean that life could be billions of years older too, new research suggests. Water is one of the most essential ...