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Re: [humanism-174] Tens of billions of rocky planets in our galaxy?

From: Mark T.
Sent on: Saturday, March 31, 2012 11:51 AM
Putting aside the speculative philosophies of hypothetical alien encounters, etc. -

So there is a high probability that the universe abounds with rocky planets like ours. How the "building blocks" of life make their way (or are formed) on the molten proto-planets or fully-formed planets is still somewhat of a mystery, but science is on the trail-


"Still, the fact that organics could have formed in the disk doesn't explain exactly how they got onto Earth. When Earth formed, it would have been a molten mess, with temperatures high enough to destroy any organics present at the time.

However, scientists say organic compounds could have survived on the asteroids and comets left behind in the solar system after the planets formed. As these bodies pummeled the Earth over the eons, they could have deposited the building blocks for life."

http://www.msnbc.msn.com/id/46898620/ns/technology_and_science-space/#.T3cnhGEgfvM


On Wed, Mar 28, 2012 at 3:07 PM, Tim Campbell <[address removed]> wrote:
Sure makes sense. The Kepler is surveying appr 250,000 stars, a tiny fraction of our galaxy and they have already discovered more than 1500 candidates for exoplanets, and instrumentation is getting more and more refined so that more earthlike planets can be discerned!
 
Tim Campbell
In a message dated 3/28/[masked]:54:30 A.M. Eastern Daylight Time, [address removed] writes:
So say astronomers at the European Southern Observatory. Their estimates are based on the number of red dwarf stars (160 billion) in our galaxy, and the recent exoplanet discoveries. It is estimated that 40% of those stars could harbor planets in their so-called "habitable zones".


Bonus article about Saturn's strange moon Titan, with its lakes & rivers of liquid methane & ethane-







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