Question: Can you explain in full detail the link between the Big Bang theory and the accelerating speed of light through black holes

Sam Geen answered on 20 Jun 2013:

Like Claire said, the speed of light is the same everywhere. Black holes are where the gravity is so intense even things travelling at the speed of light can’t escape.

The Big Bang is a little different. In fact, I know people who refuse to use the words “Big Bang” because that’s really not what it is. There’s no “bang”, no explosion. Instead, it’s the expansion of space. What does that mean?

About a hundred years ago, Edwin Hubble noticed that distant galaxies were moving away from us, and that the further away they were, the faster they were moving. The reason for this is that space is expanding – the universe we all live in is expanding at the same rate everywhere, so galaxies twice as far away are moving twice as fast away from us. It’s not an explosion, it’s not a bang, it’s just the universe expanding all over at the same rate at once. At some point billions of years ago, it must have been very small, possibly zero size. And that’s all the Big Bang is – the universe getting bigger all the time, everywhere at once.