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right. So, like all good stories, this starts a long, long time
ago when there was basically nothing. So here is a complete
picture of the universe about 14-odd billion years ago. All
energy is concentrated into a single point of energy. For some
reason it explodes, and you begin to get these things. So you're
now about 14 billion years into this. And these things expand
and expand and expand into these giant galaxies, and you get
trillions of them. And within these galaxies you get these
enormous dust clouds. And I want you to pay particular attention
to the three little prongs in the center of this picture. If you
take a close-up of those, they look like this. And what you're
looking at is columns of dust where there's so much dust -- by
the way, the scale of this is a trillion vertical miles -- and
what's happening is there's so much dust, it comes together and
it fuses and ignites a thermonuclear reaction. And so what
you're watching is the bir