The Drake equation is a (shock horror!) equation that allows one to calculate the probability of aliens in the Milky Way. It was formulated, not by Sir Francis Drake of late sixteenth-century world-circumnavigation fame, but by American astrophysicist and astrobiologist, Frank Donald Drake, in 1961. According to it, Number of civilisations in the Milky Way with whom communication is possible = Rate of star formation in Milky Way × Fraction of stars with planets × Avg number of planets capable of supported life per star-with-planet × Fraction of planets capable of life that actually develop life × Fraction of planets with life that develop intelligent life i.e., civili...
Irreverent | Irrelevant | Irrational