Astronomers use something called the “drake equation” and it just changed..
The search for alien life is going strong and some factors may have just changed. Scientists at MIT and Cornell are weighing in on things. Also let’s remember in 2015 they restarted the S.E.T.I. program with the help of a Russian billionaire as well as discovered a lot of exoplanets such as kepler 452-b. The advent of exoplanets being detectable in particular is making some news:
The Drake equation describes “N”: the number of civilizations in our galaxy with which radio communication might be possible. Its author, the astronomer Frank Drake, originally penned it as a discussion point for one of the first meetings about the search for extraterrestrial intelligence in the early 1960s.
The discovery of planets orbiting other stars has suddenly given astronomers a good idea of the fraction of stars with planets and the fraction with rocky planets in the habitable zone.
Let’s find out how this effected the equation on page 2
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The Drake equation in itself is a great piece of work, but most of the factors in the equation are unknown. Hard to solve for “X” when you don’t know what “A,B and C” are.
Best guesses aren’t hard science.