A new article on CNN talks about a newly released theory from astronomer Alan Boss that states there may be as many as 300 billion earth-like planets also in the Milky Way. here is a quote from an article on CNN.com
There may be 100 billion Earth-like planets in the Milky Way, or one for every sun-type star in the galaxy, said Alan Boss, an astronomer with the Carnegie Institution and author of the new book “The Crowded Universe: The Search for Living Planets.”
He made the prediction based on the number of “super-Earths” — planets several times the mass of the Earth, but smaller than gas giants like Jupiter — discovered so far circling stars outside the solar system.
Another group mentioned in the article is a group from the University of Edinburgh. They state there may be as many as 300 to 30,000 intelligent civilizations that may have existed (still exist), but there is no reason to believe that they have contacted us. This all comes from a mega simulation of the milky way based on all our advanced astronomical observations. Very interesting indeed.
I also happened to listen to an Economist podcast with Simon Conway-Morris on evolution. He brings up the same kind of arguments, but he thinks that we are alone and brings up the Fermi paradox. Why haven’t we heard anything?
Truly food for thought. Although, I do agree that we have to fix many problems here on this planet, I find it hard to not gaze outward to see where and who we really are in this universe. As we send out more deep space probes and find new ways of measuring the cosmos, I’ll be very interested to see what we find.