大爆炸——被广泛误解的理论

The public has deeply misunderstood the Big Bang theory. Most people think of the Big Bang as the creation of the universe around fourteen billion years ago when a tiny, dense point of matter exploded out into vast, empty space. Right? Wrong. This widespread version is not just wrong on the details but also on the essentials. And in a bit of cosmic irony, it is less weird and dramatic than the real scientific story. So, let’s set the record straight. First, there was no single dense point in empty space. The whole universe was already filled with frothing energy, which then expanded and cooled. The Big Bang was everywhere. …