Pages: 1 [2]   Go Down
Print
Author Topic: James Webb Space Telescope- first images release  (Read 2746 times)
Legends-Lounge

Offline Offline

Posts: 8153

Non PC straight talking tory Brexit voter on this




Ignore
« 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?
Logged
Qunk

Offline Offline

Posts: 839





Ignore
« 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
Logged
Legends-Lounge

Offline Offline

Posts: 8153

Non PC straight talking tory Brexit voter on this




Ignore
« 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?
Logged
Qunk

Offline Offline

Posts: 839





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

Can you be more precise?

Almost certainly not 😛
Logged
Legends-Lounge

Offline Offline

Posts: 8153

Non PC straight talking tory Brexit voter on this




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

Almost certainly not 😛

😁
Logged
jayohaitchenn
Wielder of the BANHAMMER

Offline Offline

Posts: 12507




« 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
Logged
Abrahammer

Offline Offline

Posts: 4823


A legitimate dude sighting




Ignore
« 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 
Logged
Pages: 1 [2]   Go Up
Print
Jump to: