V Believe That aliens Exist hahahahahahahahahaaha
Acording to the drake equation
Ns x fp x ne x fl x fi x fc x fL
N = number of alien civilizations in the Milky Way
Ns = estimated number of stars in the Milky Way;
fp = fraction or percentage of these stars with planets on its orbits;
ne = average number of these planets with potential to host life as we know it;
fl = percentage of these planets that actually develop life;
fi = percentage of these planets that actually develop intelligence on human level;
fc = percentage of these civilizations that actually develop electromagnetic radiation emitting technologies;
fL = percentage of these civilizations that keep emitting electromagnetic signals to space. This factor is extremely dependent on the lifetime a civilization remains electromagnetic communicative.
- See more at:
http://www.astrobio.net/news-exclusive/at-last-how-many-alien-civilizations-are-there/#sthash.F01wPHC1.dpuf The SETI or Search for Extra Terrestrial Inteligence( a official program) estimates that there are currently 3500 galactic civilisations in existence.