binman106 t1_iujn48f wrote on October 31, 2022 at 8:49 PM Reply to Why we don’t see aliens by Ggoods123 Size of our galaxy is about 100,000 light years, means we are looking at most 100,000 years in the past if we are only interested in 100+ billion stars in our galaxy. 100,000 years is short time relative to age of stars or planets. Read https://en.m.wikipedia.org/wiki/Drake_equation for some estimations on how many civilization we should see. Also relevant: https://en.m.wikipedia.org/wiki/Fermi_paradox Permalink 1
binman106 t1_iujn48f wrote
Reply to Why we don’t see aliens by Ggoods123
Size of our galaxy is about 100,000 light years, means we are looking at most 100,000 years in the past if we are only interested in 100+ billion stars in our galaxy. 100,000 years is short time relative to age of stars or planets.
Read https://en.m.wikipedia.org/wiki/Drake_equation for some estimations on how many civilization we should see.
Also relevant: https://en.m.wikipedia.org/wiki/Fermi_paradox