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| Personal background |
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Cand.scient
astrophysics Aarhus University
Denmark |
| Thoughts about SETI and SETI@home |
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Our Galaxy contains of approximately 1 billion stars, and our local galaxy cluster contains of approx. 1000 galaxies. Our local galaxy cluster is just one of many many galaxy clusters. Of course half of all the stars are binaries, i.e. a planetary system will not be stable for a long time period, so lets take the number of stars and divide it by 2. The total count of stars is still a fairly large number. Obviously one have to subtract the number of stars which is contained in local hopes, but these stars we neglect, since it may be 1% of all the stars in the galxy.
So should our sun really be the only one, with a stable planetary system, with the possibility for evolving life. Naaa dont think so.
The problem is not wether there is life out there. The problem is the dispersion of radiowaves detected and analyzed in the SETI-project. Is it all possible to detect radiowaves with life proofing signals. Can one lifebearing planetary system communicate with other systems? can signals of the magnitudes be sent over such wast distances ?, and can they be detected. And what to do we do the day, somebody sends us a greating for outer space. ?
Currently the earths only hope is detecting.... so lets give it a shot. |
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