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Nawlens Gator
Florida Fan
louisiana
Member since Sep 2005
3934 posts

re: Size of Earth compared to size of Sun

Come on people! Don't fall for this fake news. If I hold a quarter at arms length I can completely block out the sun. The sun is therefore smaller than a quarter.





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11
Langland
LSU Fan
Trumplandia
Member since Apr 2014
6197 posts

re: Size of Earth compared to size of Sun
The Moon is pissed it was left out of the shot.


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Meauxjeaux
Memphis Fan
96468 posts including my alters
Member since Jun 2005
25202 posts

re: Size of Earth compared to size of Sun
quote:

Kinda puts climate change in perspective


Edited for the really important context.


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91TIGER
Houston Astros Fan
Lafayette
Member since Aug 2006
11838 posts

re: Size of Earth compared to size of Sun
quote:

That isn't as impressive as voyayger 1's 6 billion mile pic of earth







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meeple
USA Fan
Member since May 2011
5791 posts

re: Size of Earth compared to size of Sun
quote:

Not buying it. Who could be on that side on the sun to snap the picture?

You mean what? The Hubble Space Telescope


PsychTiger
LSU Fan
Charleston
Member since Jul 2004
62695 posts

re: Size of Earth compared to size of Sun
quote:

A red giant will consume us, and everything we ever were. It'll all be ash. Everything will be equal.


Not if the Progressives do it first.


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TD SponsorTD Fan
USA
Member since 2001
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sjmabry
LSU Fan
Texas
Member since Aug 2013
15853 posts

re: Size of Earth compared to size of Sun
quote:

Space is crazy, yo

This


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Chitown_Badger
Wisconsin Fan
A one drink walk from Wrigley
Member since May 2013
9665 posts
 Online 

re: Size of Earth compared to size of Sun
This is some crazy shit, when you look at relative sizes.





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Kentucker
Kentucky Fan
Lexington
Member since Apr 2013
13994 posts

re: Size of Earth compared to size of Sun
quote:

The odds that we are the first technologically advanced civilization (if you could even call us that) in the universe is vanishingly small.


Only if the Universe is infinite, which is doubtful. If the rest of the Universe is like the part which we are able to observe, then we could very well be one of the first technological civilizations.

It takes a very long time for the conditions which promote the evolution of life to come about. Stars have goldilocks zones, but so do galaxies. Within these zones, supernovas are responsible for distributing the elements that can lead to life on planets. Because supernovas only happen about once per year per galaxy, it takes a very long time for the inhabitable zones of galaxies to become rich with these elements.


Chitown_Badger
Wisconsin Fan
A one drink walk from Wrigley
Member since May 2013
9665 posts
 Online 

re: Size of Earth compared to size of Sun
quote:

If the rest of the Universe is like the part which we are able to observe, then we could very well be one of the first technological civilizations.

It takes a very long time for the conditions which promote the evolution of life to come about. Stars have goldilocks zones, but so do galaxies. Within these zones, supernovas are responsible for distributing the elements that can lead to life on planets. Because supernovas only happen about once per year per galaxy, it takes a very long time for the inhabitable zones of galaxies to become rich with these elements.


1) The universe has been around for a while, so "enough time" is not a problem

2) The elements that can lead to life have been discovered just about everywhere we look, including other planets in our own solar system, moons in our solar system, and even comets

3) A supernova is happening about once every second somewhere in the universe, and have been doing so for eons...again, time is not really something that lessens the chances, it increases them

4) Even within our own immediate "neighborhood", we are finding hundreds of planets and some or many of them are in the Goldilocks zone of their star. Multiply that by the size of our galaxy and then by 100 billion and that's a lot of planets, with the odds of life (and intelligent life) coming to exist are virtually certain



MountainTiger
LSU Fan
The Duchy of Grand Fenwick
Member since Dec 2008
11287 posts

re: Size of Earth compared to size of Sun
quote:

You mean what? The Hubble Space Telescope

The one that's orbiting Earth?


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Kentucker
Kentucky Fan
Lexington
Member since Apr 2013
13994 posts

re: Size of Earth compared to size of Sun
quote:

1) The universe has been around for a while, so "enough time" is not a problem.


Yes, 13.7 billion years is “a while” but is it enough time for intelligent life to become ubiquitous? We can’t possibly know with a data set where n = 1.

quote:

2) The elements that can lead to life have been discovered just about everywhere we look, including other planets in our own solar system, moons in our solar system, and even comets.


They are discoverable wherever supernovas have occurred. Our own solar system is endowed with a very rich concentration of these elements. We lie in the goldilocks region of our galaxy where this concentration is highest so it isn’t surprising that we find them here.

However, beyond this region the concentration is much lower because the number of stars is lower. Closer to the center of the galaxy, radiation is so high that the likelihood of life is very low even though the concentration of elements may be great.

So, the size of the goldilocks zone is a huge factor in estimating the probability of habitable solar systems. More study is needed.

quote:

3) A supernova is happening about once every second somewhere in the universe, and have been doing so for eons...again, time is not really something that lessens the chances, it increases them


Heck, because the Universe may be so unfathomably large, it could even be once every millisecond. Who knows? However, that doesn’t affect the rate per galaxy that we observe.

Additionally, we are limited to observing a tiny part of the cosmos. It may or may not be representative of the make up of the Universe.

quote:

4) Even within our own immediate "neighborhood", we are finding hundreds of planets and some or many of them are in the Goldilocks zone of their star. Multiply that by the size of our galaxy and then by 100 billion and that's a lot of planets, with the odds of life (and intelligent life) coming to exist are virtually certain


It’s now obvious that planets, even earth-like worlds, are plentiful in the Universe. Our Milky Way is estimated to contain some 30 billion planets that resemble earth in size and make up.

Also, the new estimate for the number of galaxies in the observable universe has increased from 100 billion to 2 trillion because of Hubble’s Deep Field photographs. When we consider Alan Guth’s Inflation Theory, the number of galaxies in the entire Universe may be 1,000,000,000,000,000,000,000,000 times that 2 trillion.

So, again taking into account our confirmed data set of 1, is the probability of intelligent life for the Universe just one in 2,000,000,000,000,000,000,000,000,000,000,000,000? Probably not but statistics is a bitch, and just a guess without adequate data. Science is about observation, not guesses.





This post was edited on 4/16 at 2:01 pm


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EyeTwentyNole
Florida State Fan
Member since Mar 2015
4095 posts

re: Size of Earth compared to size of Sun
I don't claim to be some physicist but I've never understood why we humans are arrogant enough to think our laws of physics or biology mist apply to some region millions of light years away. For all we know the other side of the universe could like and act nothing like what we have observe. We don't know shit


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