From the August 2007 issue

What is the difference between the expansion of space and time following the Big Bang and matter expanding from an infinitely dense point?

By | Published: August 1, 2007 | Last updated on May 18, 2023
The words “Big Bang” don’t adequately describe the expansion of the universe, which is different than an explosion from a given point in space. In an explosion, an observer sitting far from the center would see material traveling toward her.