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Author Topic: James Webb Space Telescope- first images release  (Read 1322 times)
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« Reply #15 on: Thursday, July 14, 2022, 17:25:22 »

That is one fucking decent set of bins  Smiley
I thought the universe was only 6 billion years old?



I have read 13.8 billion. Either way how the fuck do they know?
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Qunk

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« Reply #16 on: Thursday, July 14, 2022, 17:41:06 »

I have read 13.8 billion. Either way how the fuck do they know?

13.8 billion is the closest they can estimate, it could be more or less and we’ll get closer to the true answer (although probably not with 100% precision) as more data/evidence is unearthed. But the 13.8 billion estimate is based on a couple of things, such as study of the cosmic microwave background (a radiation afterglow left behind a few hundred thousand years after the Big Bang), study of the oldest known stars we are currently aware of and by looking at the current expansion rate of the universe and by extrapolating back to the big bang
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« Reply #17 on: Thursday, July 14, 2022, 21:06:20 »

13.8 billion is the closest they can estimate, it could be more or less and we’ll get closer to the true answer (although probably not with 100% precision) as more data/evidence is unearthed. But the 13.8 billion estimate is based on a couple of things, such as study of the cosmic microwave background (a radiation afterglow left behind a few hundred thousand years after the Big Bang), study of the oldest known stars we are currently aware of and by looking at the current expansion rate of the universe and by extrapolating back to the big bang

Can you be more precise?
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Qunk

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« Reply #18 on: Thursday, July 14, 2022, 21:47:03 »

Can you be more precise?

Almost certainly not 😛
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Legends-Lounge

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« Reply #19 on: Friday, July 15, 2022, 06:42:49 »

Almost certainly not 😛

😁
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jayohaitchenn
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« Reply #20 on: Friday, July 15, 2022, 06:55:53 »

Can you be more precise?

The first third of this article is pretty easy to follow. Gets a lot more in depth as it goes on though and once the maths comes out, I'm fucked if I know what they are babbling about.

https://www.forbes.com/sites/startswithabang/2019/12/10/this-is-how-astronomers-know-the-age-of-the-universe-and-you-can-too/?sh=26cb721216d5
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Abrahammer

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« Reply #21 on: Friday, July 15, 2022, 07:01:39 »

Was a good documentary on this telescope on BBC2 last night, assume it can be caught on iPlayer 
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