As the universe expands, it feels like it must be spreading out from some initial point. But a physicist explains why that’s ...

About a century ago, scientists were struggling to reconcile what seemed a contradiction in Albert Einstein’s theory of general relativity. Published in 1915, and already widely accepted worldwide by ...

In fact, scientists think that the Big Bang did not happen at a single location in space. It occurred everywhere at once.

The universe is expanding, and while that fact is fascinating, it also creates a question that trips people up: if […] ...