Professor Brian Cox
speaker
1,154 appearances
2 recordings
1 series
first heard Jul 2026
last heard 24 Aug
Professor Brian Cox’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 2 in all, peaking in Aug 2026 with 1.
Appearances
But it's got these little bits that where there's a bit more gas here and a bit less here, and a bit more there and a bit later.
That's it.
Tiny.
Little variations.
Then gravity, as the universe goes, expands and cools.
Gravity can allow them to collapse into galaxies and stars.
And that, by the way, is a huge story about how does that work?
And that, but in it essentially, just the the where where it's a bit denser, gravity takes over and they collapse and they make stars.
And stars shine by
By sticking lighter elements into heavier elements.
So the sun at the moment is making hydrogen into helium.
Well that's what it's doing, it's just making heavier elements.
But then at the end of its life, when it runs out of hydrogen to make into helium, it starts making carbon and oxygen and those things.
So those things out of which we are made come from generations of
stars that assembled them and then died, threw that stuff out into the universe.
And then gravity takes over and it recollapses that into a new stars and then ultimately planets.
And and that's the story of the universe.
So it's the story is
13.8 billion years, uh, of which the Earth has been around four and a half billion, by the way.
So to get a scale of it, you you end up from this simplest of elements, the heavy elements get made in stars, gravity collapses it all back together again, and ultimately you get places like this.
Showing 21–40 of 1,154 · page 2 of 58
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