Yeah I think you guys are right. Going to the nearest galaxy is simply too far away. I can't imagine people wanting to begin a voyage to a destination that was millions of years away. In fact, there is probably a better chance of waiting for wormholes!
...where would you go?
If a new technology allowed a spacecraft to travel at say 0.5c, and life on board this ship could be sustained indefinitely. If this ship was built tomorrow, where do you reckon it would go? Andromeda? pluto? centre of milky way? alpha centauri?
Just though it...
I see, but shouldn't these primitive lifeforms have evolved ? They may have been around for billions of years. It took 4billion years here on Earth to get from bacteria to humans...maybe other planets are not capable of complex life forms? maybe due to fluctuations in temperature or lack of carbon
What do you guys reckon to the odds of us finding alien life?
The fermi paradox:
'If there are all these billions of planets in the universe that are capable of supporting life, and millions of intelligent species out there, then how come none has visited earth?'
I reckon there exists...
Ah yes of course, objects would definitely be a better term. Thanks very much.
edit - I am not sure I follow on the 500,000 light year part. Do you mean that the source of the light was at one point 500,000 lyr away, by the time this light reached earth, it appeared that it was 14blyr away...
Whoa, thanks for all the help guys, my brain is fried after all that!
It seems the actual size of the universe (rather than observable) is too complicated for what I want to write (very Interesting, however).
May someone maybe clarify if what I say here is correct?
'The observable...
Thanks for the reply
Can I just check I understand what you said.
-If a ray of light that reaches Earth is 14billion LYs old (lets say). The source of this light is now much further than 14billion light years away due to the expanding universe?
-Is the whole universe expanding, or...
Hello,
I have read a lot of different articles about the estimated size of the universe, however there seems to be a lot of different theories. Most of the articles I have read have been a little dated, so I was wondering what's the current best guess.
I know the universe is around 13.7...