Big Coppitt Key, FL
My Posts: All Forum Topic
No question about it. I count him amongst my most favorite human beings of all. To me and many others he was the quintessential teacher of cosmology.150,000,000,000 x 200,000,000,000 = 30,000,000,000,000,000,000,000
A solid conservative estimate is that galaxies average 150 billion stars each. Also solid is that presently there are roughly 200 billion detectable galaxies.
A really superb picture of what is only a few square minutes-of-arc of the sky. Extrapolate if you will, for the whole sky and try to imagine the size . . .
It's a high probability there's over 30 sextillian
stars. Datsa really
And if only one in a billion
of those stars have (or had) planets . . . Hmmm . . .
Play along with Frank Drake
until your mind feels properly boggled. Here's
a description of the Frank Drake Equation. Here's
where you can plug in your
estimates for the values of the Equation's 7 separately-definable variables.
From that site:
"The real value of the Drake Equation is not in the answer itself, but the questions that are prompted when attempting to come up with an answer. Obviously there is a tremendous amount of guess work involved when filling in the variables. As we learn more from astronomy, biology, and other sciences, we'll be able to better estimate the answers..."
Ponder 'til boggled. Then -- just for the heluvit -- ponder a little bit more.
Lather, Rinse, Repeat.