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Dean Watson

Circumference but no radius...

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Dean Watson

Which I thought is nice pursuasive click bait! You know the youtube vids on star sizes, not seen this one (well obviously now I have or I wouldnt be posting it...) .  Cool one on black hole sizes.  Thought it was rather good.  If the Phoenix cluster bit doesnt make for a cold shiver down your back, you're dead inside!

 

 

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Tweedledee

Mind boggling!!! :thumbsup:

 

Glad the Phoenix cluster is 6 billion light years away from us. It is still growing at a rate of 60 million suns per year! :o

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BAZ

Just wow.

Even being able to demonstrate that and we really have only scratched the surface of what we know exists, it just makes you wonder what else lurks out there. I love watching stuff like this.

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