Where are the aliens?

– Explanations for the Fermi Paradox

In my former article „On the Drake equation“ I have shown a way how to reduce the number of 4 completely unknown Variables in the Drake equation to only one by application of a model of an interstellar ecology. The Drake equation was introduced in 1961 and provides a simple model for the estimation of the number of intelligent communicative civilizations in our home galaxy. It is related to the Fermi paradox. The Fermi paradox is the contradiction between the lack of evidence for the existence of extraterrestrial civilizations and the estimates that lead regularly to very high probabilities for existence. Famous physicist Enrico Fermi (1901-1954) once produced the following arguments:


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On the Drake equation

– Ecology leads to a simplified equation and a solution of the problem

In 1995 mankind discovered the first extrasolar planet and since then we have detected thousands of them. We have also detected planet candidates that seem to be within a certain distance to their home stars so that liquid water should exist on their surface. We have detected enough of those worlds to get into statistic ranges, where extrapolations normally are quite good (significant). Meanwhile we can predict with a high certainty that our galaxy owns at least millions of planets with conditions that allow life as we know it. But where are the aliens?


Actually, if there are so many worlds with conditions that are similar to planet Earth, there should be an agile traffic between all that planets. Aliens should regularly visit us, one might expect. Why don’t they? Where are they? Do they actually exist? At least these alien civilizations should be capable to send radio signals into the surrounding universe, as we do. We are searching for that alien radio signals since decades now but never found anything. Why is space void if there are so many planets with possible life conditions? We call this discrepancy the Fermi Paradox.

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First Contact – alien Laser Beacons detected?

Picture: NASA; ESA; G. Illingworth, D. Magee, and P. Oesch, University of California, Santa Cruz; R. Bouwens, Leiden University; and the HUDF09 Team; Wikimedia
Very carefully (it was not released in the mass media so far. Everybody is waiting for verification. So don’t expect too much):
Our generation might be possibly witnessing in these days the discovery of an interstellar communication system between 234 civilizations in our galactic proximity [1].
Astronomers analyzed the light from 2.5 million stars. They found 234 anomalies that could have 5 possible explanations:
  • instrumental and data reduction effects
  • rotational transitions in molecules
  • the Fourier transform of spectral lines
  • rapid pulsations of the stars
  • laser pulses from extra terrestrial intelligences (ETI)
From these 5 possible explanations of the anomalies astronomers could eleminate 3 so far with high probability. The remaining explanations is an error out of the instrument and data reduction or periodic laser pulses as predicted by physicist Ermanno Borra 2012 [2]. If it can be proven, the spike in the FFT (Fast Fourier Transformation, a standard signal analyzing algorithm) does not come out of the measurement system itself, then it has to be artificial laser sources with a very high probability. Next step would be building huge lasers and sending strong pulse signals into the direction of a few of the nearest of the laser sources to proof Borra’s hypothesis and thereby:
to get into conversation..

Was ist Stellare Oekologie?

Ein frischer Einschlagkrater ist gerade auf dem Mars entdeckt worden [1]. Sein Kraterdurchmesser betraegt etwa 30m. Um einen Krater dieser Groesse zu erhalten bedarf es je nach Einschlagwinkel und Groesse des Objektes Energien von einigen hundert Tonnen bis zu einigen hundert Kilotonnen TNT-Aequivalent, oder umgerechnet vielfachen Sprengkraft der Hiroshima-Atombombe [2]. Bei solchen Einschlaegen und besonders bei den energiereichen Einschlaegen wird Permafrostboden in der Naehe des blitzartig sich ausbreitenden Kraterrandes aehnlich einem Surfbrett auf einer Welle so schnell beschleunigt, dass Bruchstücke des Bodens Fluchtgeschwindigkeit erreichen können [3] und danach im Sonnensystem herumirren, bis sie irgendwann einmal auf einem Planeten, z.B. der Erde, wieder aufschlagen und in der Tat findet man auf der Erde ueberall Marsgestein [4].

Ein neuer 400 kT Einschlagskrater auf dem Mars, Bild: NASA