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What advantage does Hubble have over ground-based telescopes?

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No matter how big your telescope is on
the ground you just can't see through

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the air
very well because the atmosphere is

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turbulent.
So even though you can see the stars

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with your eyes they're blurry they're
twinkling they're doing things that you

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can't really compensate for yet from the
ground so

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space telescope gives you a sharp image
that you can't get from the ground.

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In astronomy there's what we knew before
Hubble and now there's what we know

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after Hubble they're
so different. Of course Hubble has now

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had a life of 30 years so it's
had a long time to make this revolution

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happen so it's not all at once
it's a gradual revolution but it's still

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a huge revolution.

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[ BEAUTIFUL MUSIC ]

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I think the Hubble telescope has been
the most productive science instrument

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ever built
so it is indeed the most astonishing thing.

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[ BEAUTIFUL MUSIC ]