Though recent discoveries indicate fragmentary evidence of the possibility of life beyond Earth, the evidence available does not foretell an E.T. invasion.
Is there a way to estimate the number of technologically advanced civilizations that might exist in our Galaxy? While working at the National Radio Astronomy Observatory in Green Bank, West Virginia, Dr. Frank Drake conceived a means to mathematically estimate the number of worlds that might harbor beings with technology sufficient to communicate across the vast gulfs of interstellar space. The Drake Equation, as it came to be known, was formulated in 1961.
The Drake equation: N= R* fp ne fl fi fc L
N= The number of communicative civilizations
R*= The rate of formation of suitable stars (stars such as our Sun)
fp= The fraction of those stars with planets. (Current evidence indicates that planetary systems may be common for stars like the Sun.)
ne= The number of Earth-like worlds per planetary system
fl= The fraction of those Earth-like planets where life actually develops
fi= The fraction of life sites where intelligence develops
fc= The fraction of communicative planets (those on which electromagnetic communications technology develops)
L= The "lifetime" of communicating civilizations
Absence of evidence is not [conclusive] evidence of absence. SETI slogan
While the scientific community doesn't generate much E.T. excitement, Hollywood does.
And the more sensational the fiction: an unstoppable onslaught of ruthless E.T.'s mobbing Earth to enslave us ...
It may sell cinema tickets. But it's rather more amusing science fiction than enlightening science fact.
Are we Earthlings being avoided, ostracized by our galactic neighbors?
- We're too primitive?
- We're too unpredictable? Dangerous?
- We're too unionized? E.T.'s prefer to enslave "right to work" planets?
- or -
Are we alone?
====================================================
Ever see a UFO or UAP (unexplained anomalous phenomenon) ? Care to post a pic ?
Is there a way to estimate the number of technologically advanced civilizations that might exist in our Galaxy? While working at the National Radio Astronomy Observatory in Green Bank, West Virginia, Dr. Frank Drake conceived a means to mathematically estimate the number of worlds that might harbor beings with technology sufficient to communicate across the vast gulfs of interstellar space. The Drake Equation, as it came to be known, was formulated in 1961.
The Drake equation: N= R* fp ne fl fi fc L
N= The number of communicative civilizations
R*= The rate of formation of suitable stars (stars such as our Sun)
fp= The fraction of those stars with planets. (Current evidence indicates that planetary systems may be common for stars like the Sun.)
ne= The number of Earth-like worlds per planetary system
fl= The fraction of those Earth-like planets where life actually develops
fi= The fraction of life sites where intelligence develops
fc= The fraction of communicative planets (those on which electromagnetic communications technology develops)
L= The "lifetime" of communicating civilizations
Absence of evidence is not [conclusive] evidence of absence. SETI slogan
While the scientific community doesn't generate much E.T. excitement, Hollywood does.
And the more sensational the fiction: an unstoppable onslaught of ruthless E.T.'s mobbing Earth to enslave us ...
It may sell cinema tickets. But it's rather more amusing science fiction than enlightening science fact.
Are we Earthlings being avoided, ostracized by our galactic neighbors?
- We're too primitive?
- We're too unpredictable? Dangerous?
- We're too unionized? E.T.'s prefer to enslave "right to work" planets?
- or -
Are we alone?
====================================================
Ever see a UFO or UAP (unexplained anomalous phenomenon) ? Care to post a pic ?