SophieMaltese From United States of America, joined Feb 2001, 2064 posts, RR: 3
Reply 2, posted (14 years 5 months 1 week 16 hours ago) and read 793 times:
That is pretty scary when you think about it. We are all pretty small and insignificant in the grand scheme of things. And yes, there could be little green men (or purple or blue or whatever) who knows? If there is that much more than our universe there is bound to be some other life out there!
Ikarus From United Kingdom, joined Jan 2001, 3524 posts, RR: 2
Reply 4, posted (14 years 5 months 1 week 12 hours ago) and read 788 times:
Around the universe: Nothingness.
The only way I manage to imagine it is like this: When the big bang occurred, there was a tiny ping-pong ball of matter / materia. Around it, there is nothing. So as it explodes (an exotherm reaction), it expands and also creates light. Now, the light progresses and suddenly, much of the geometry where there was nothing has at least one measurable quantity in it: light. Something. So that's how I imagine the borders of the universe: My definition is: the universe is the sum of all locations where light can be observed/measured.
But I know it's not scientific and just sort of my personal imagination of the universe. I don't think the human mind has the capacity to understand it - no matter how close we believe to be. Which is why we build ridiculous belief structures (i.e. religions) around it, to explain stuff that is just beyond our dimensionally limited brains (we can imagine 2 dimensions, and find 3 dimensions difficult. So how do we imagine the XX dimensions that our universe possesses?)....
DesertJets From United States of America, joined Feb 2000, 7874 posts, RR: 14
Reply 8, posted (14 years 5 months 1 week 12 hours ago) and read 785 times:
I think the late Carl Sagan put it best...
"billions and billions of stars in billions and billions of galaxies"
And that is probably an understatement too. Once you try to wrap your mind around, even local distances in our neighborhood, the galaxy it is painful. The nearest stars to Earth are 6-10 ly away. Even if we could travel at the speed of light a round trip would take the better part of a generation to pull off. Our own galaxy is around 100,000 ly across. Within our local cluster of galaxies it is millions of ly to Andromeda. And there are billions and billions more. Lets not even get into speculation about extra-terrestrial life. As a people we've managed only in the past 150 years or so to make it quick and feasible to travel about our own planet. It is mind-boogling.
Stop drop and roll will not save you in hell. --- seen on a church marque in rural Virginia