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Do you still think we are alone in the universe...

Do you still think we are alone in the universe...

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Originally posted by bot 6
no-one knows nothing about everything.
Stand aside Plato, you've been usurped!!

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Originally posted by eddiedean
Isn't a red dwarf further along in the life cycle of a star? Closer to Super Nova?
Novae turn into white dwarfs not red. Red dwarfs start out with less mass than our sun, sometimes way less so the fires of fusion just don't burn as hot and I heard one person say its better at convection (the vertical up and down mixing flows of hydrogen) that makes it better at utilizing what fuel it has so between the two effects, red dwarfs last a lot lot longer, maybe a hundred billion years or more. They take a likin and keep on tickin. The surface gets a lot more violent than our rather placid sun however, so like one person pointed out, if there is a planet in a habitable zone, any life on that planet would have to evolve tough defenses against radiation.

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Originally posted by Phlabibit
Your face looks like uranus?

P-
Your butt is bigger than Uranus. 😕

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Originally posted by eddiedean
Isn't a red dwarf further along in the life cycle of a star? Closer to Super Nova?
I was searching the web to find the difference between a red dwarf star and a giant red star and ran across this really neat site:

http://www.enchantedlearning.com/subjects/astronomy/stars/startypes.shtml

They explain the various stages that stars pass through.