How Big Is the Universe? | AfterMaths Summer Special
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How Big Is the Universe? | AfterMaths Summer Special
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How can the universe be 13.8 billion years old but the observable universe be around 93 billion light years across?
In this AfterMaths Summer Special, Jon is joined by primary science specialist Sarah Hutson to tackle some of the wonderfully ridiculous numbers involved in trying to understand the universe.
They talk solar eclipses, meteor showers, shooting stars, the speed of light, the size of the Sun and Moon, and why looking into space is really looking back in time.
There is also Sarah's highly scientific game What on Earth Have I Drawn?, a surprising rise in colander sales, the reason total solar eclipses are possible, and an attempt to explain the expansion of the universe using an ant on an elastic band.
By the end, Jon needs a lie down.
Which is probably the correct response to cosmology.