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Science

BadgerKid

(5,010 posts)

1. Looks like this doubles whatever number

Reply to eppur_se_muova (Original post)

Wed Jan 11, 2012, 05:13 PM

Jan 2012

of detectable extraterrestrial civilizations in the Milky Way there are estimated to be. (f_P, the fraction of stars having planets, is generally estimated to be 0.5, now would be ~1.)

http://en.wikipedia.org/wiki/Drake_equation

EDIT: oops, didn't scroll down far enough to see where the combination of different survey methods indicates f_P in the range 0.2-0.6 previously.

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Study says every star {likely} has planets (BBC) [View all] eppur_se_muova Jan 2012 OP

Looks like this doubles whatever number BadgerKid Jan 2012 #1

Given the scope of the galaxy, n-sub-e is the important one at this point. (nt) Posteritatis Jan 2012 #2