The life of the universe

You've been around for at least 14 years now. The universe has been around a thousand million times longer

The Big Bang Theory-the universe is expanding

• Other galaxies are moving apart from us
• This shows that the universe is expanding (getting bigger)
• All the galaxies are moving apart a great speed from a single point
• We think a big explosion got them going-the Big Bang

The universe is 14 thousand million years old 

• Before the Big Bang all the matter (stuff like air, rocks,…