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Author | Message |
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maxena Send message Joined: 1 Apr 05 Posts: 2 Credit: 336 RAC: 0 |
Hey, I'm a newbie so can someone answer me this: if we find a signal that means intelligent life out there, just how OLD will it be? |
Thomas Angelos Sr. Send message Joined: 18 Oct 00 Posts: 39 Credit: 7,756,683 RAC: 10 |
> Hey, I'm a newbie so can someone answer me this: if we find a signal that > means intelligent life out there, just how OLD will it be? > Guess we wont know till we find them first. We will need to find out how many light years away they are and then take a big guess on how long they have been around. |
maxena Send message Joined: 1 Apr 05 Posts: 2 Credit: 336 RAC: 0 |
> > > Guess we wont know till we find them first. We will need to find out how many > light years away they are and then take a big guess on how long they have been > around. > So, presuming they come from a different sun's system ie not sol, say, even the nearest star, what is it?(alpha centauri ??) If it came from a planet around that star, what would the message's age be? |
Elphidieus Send message Joined: 1 Nov 02 Posts: 67 Credit: 3,140,607 RAC: 0 |
> > > > > Guess we wont know till we find them first. We will need to find out how > many > > light years away they are and then take a big guess on how long they have > been > > around. > > > So, presuming they come from a different sun's system ie not sol, say, even > the nearest star, what is it?(alpha centauri ??) If it came from a planet > around that star, what would the message's age be? > > If the signal travels at the speed of light from Alpha Centauri, I'd say about 4.2 to 4.8 years old... Could be more if it is a continuous transmission... Anything else that I have yet to factor in....? could be longer... |
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