The prerequisite
for a space-moving civilization is:
From
a developmental point of view, only the highest level of
civilization 8 has interstellar space travel. Therefore,
the probability of finding such a species is: Inserting all values (F _{e} = 0.01) into equation
6.3.3:N _{ze2} = (100-300)·10^{9} · 1:15,000
· 1:691 · 1: 4089N_{ze2}
= 3 – 7 space traveling civilizationsThe two results can then be summarized to the following statement:
The
probability of a habitable "Earth 2" in
solar-like star systems, in our galaxy, with a
technological civilization operating interstellar space
travel, is then by definition 6.4.2: |

176 sides, of them 64 in Color76 pictures 11 tables Production and publishing: Books on Demand GmbH, Norderstedt ISBN 9-783-7528-5524-1 Price: 22 Euro |
||