posted on Mar, 20 2011 @ 03:59 PM
I was watching the science channel today and they are having a marathon of the series how the universe works. In a couple of those shows the discuss
how the sun will eventually become a red giant and engulf the inner planets. The thoughts that came into my mind are as follows:
-when the sun reaches red giant, will it end up leaving one of the outer planets in the "habitable zone" that earth sits in. By this i mean where we
sit now in relation to the sun, will another one of the planets or perhaps a moon (titan) be at a similar distance to this new red giant.
-how much heat will the red giant generate, I understand that the star actually begins to cool in this phase, it still is emmitting heat. Right now
the temperature of the sun is listed as approx. 1.57 x 10^7 kelvin. Even if it cools too lets just say 1.57 x 10^3 kelvin that is still pretty hot.
-how long will it last in red giant
- can this lead to life springing up on other planets and thriving til the red giant goes white dwarf
Like i said this is just a thought that popped in my head litterally an hour ago. I apologize if this has been discussed earlier, i sifted through a
bunch of stuff on red giants and did not see anything like this.
I am eagerly looking to hear from you all on here and see your thoughts. I have no expectations either way and i am just curious to hear from people
way more knowledgeable than me on this.
edit on 20-3-2011 by lcbjr1979 because: (no reason given)