Wednesday, 6 November 2013

To boldly dream... of new earths in distant galaxies

From the Daily Galaxy.
When the late great Carl Sagan talked of "billions and billions..." he was talking of stars.
But it now seems there are billions and billions (up to 40 billion) earth-sized planets in our galaxy alone and that more than 8 billion of them are circling in the "Goldilocks" habitable zone, not too hot and not too cold for liquid water.
Given what we know about the propensity of life to arise wherever it can, what's the likelihood of life on other planets?  Surely verging on 1.
Hopefully we will find some in my lifetime... one can only dream.
Just one report from many: "Study finds billions of Earth-sized planets in galaxy." 
[And another]