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Originally posted by DarkSide
Originally posted by Kr0n0sOh and I believe its pretty narrow-minded of scientists to believe that water is a requisite for life on a planet.
Something thats necessary for us could be poisonous to an alien and vice versa
It's not narrow-minded. We only have 1 example of life, and that's life on earth, which is based on carbon and requires water. So it's logical to search for something were familiar with.
We have evidence that life most likely needs carbon and water, doesn't mean we will never find other types, but it's just easier to look for something we already know first.
Originally posted by tombangelta
sizeofworldse.ytmnd.com...
watch this at the end it shows the largest know star.
Also very good post.
you know, 50 billion stars in this galaxy, and loads of galaxies around.
The prerequisite is for the element to be able to build complex molecules, carbon is the best, it can connect to 1 up to 4 other atoms, it has 4 slots in manner of speaking. The only other element I know that could replace carbon would be silicium, or silica based life. But that's pure theory since as far as I know we haven't found any silica life on earth..
Don't bash me with detailed scientific terms about this, I'm trying to put it in layman terms.
They show a map of the visible universe.. which is sweet, but neglect to mention this is hypothetical.
If you look at the edge of visible space with a telescope etc. you're seeing how it once was 15 billion years ago.. We can't be sure beyond a certain distance what really is out there.
RF frequencies, light, radiation, all travel at speed of light or slower, so e.g. a star 5000 lightyears away from us looks like it was 5000 years ago.
Originally posted by fiftyfifty
That is incredible, i knew the universe was massive but that puts things into a new perspective. Just think that those huge stars could have planets bigger than our sun. They could have intelligent life on them that doesnt even know what is on the other side of their planet.. aliens in their own world if you like.
A blue sun would be crazy too. If only we could get people or even unmanned ships out there to see it for real.
The distances are still there. The universe as it really is must be even larger than that since it's expanding.
Originally posted by Mayan2012
i said "COULD" i should have emphasized that word lol a bit more.
and i dont care what our little scientists have said about the "reasons to believe that about 150 solar masses is the upper limit" or "1.4 solar masses your planet becomes a black hole" because no scientist on earth can even say for a FACT that thats true simply because we do not know enough about our universe yet.
Originally posted by tezzajw
Originally posted by digitalassassin
I too, would like to quote Carl Sagan.
I do respect Carl Sagan. I enjoyed his Cosmos series on TV and applaud him co-founding The Planetary Society.
However, I don't hero-worship him due to his mostly dismissive views about UFOs.
He was prepared to 'listen' with SETI in vain hope, yet not prepared to seriously investigate scientific evidence left behind by UFOs. That's a sticking point with me.
In a similar way, he dismissed to almost no chance that UFOs were visiting alien spaceships from other stars, yet he predicted that someday Humans would travel to other stars. Meanwhile, he also stated that technologically superior aliens were probably quite common...?
I don't think that he really knew what to do with the UFO topic, so he bungled his way about it instead.
All in all, he helped educate us to respect how vast the Universe is though.
Originally posted by DYepes
Extraterrestrials were created by God, so that we can entertain ourselves pursuing the theory of each other across vast distances, yet never being able to prove each other. God has a sense of humor
Originally posted by TheMadHatter
Look no further than earth for evidence of space traveling beings. They build machines to explore other planets like we do. Absolutely no mysticism in that, so why are people putting extraterrestrials and faith in the same sentence?
[edit on 9-4-2007 by TheMadHatter]