Hubble secret out!

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blobrana wrote:

[BTW, i`m a believer in galactic lifeforms - including those on gas giants...] :-)

Once again citing Arthur C Clarke, in 2010 he describes lifeforms living in Jupiter's atmosphere which are essentially living zeppelins, and part of a huge ecosystems of similar lifeforms, "none of which are any more substantial than a soap bubble".

I'm absolutely intrigued by what could be lying under Europa's ice crust as scientists are confident that there is a liquid ocean there.  With the huge gravity of nearby Jupiter massaging the moon's core there is also the possibility of geothermal activity releasing energies to support life in much the same way that deep ocean vents do in Earth.

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whabang wrote:

Basically "not very likely"  means one in a million. And there are more than a million stars in the Milky way.
We shouldn't forget about the thousainds of systems that look very much like ours. That's where I'd look first!

There are more stars in the skies than grains of sand on all the beaches on Earth.  

Finding something is only a matter of time IMHO, if one in every million stars have planets, and one in every million of those has life and one in every million of those supports a technoligically advanced civilization then there's still a chance that we aren't alone in this galaxy.  

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blobrana wrote:
At last count[?] there was 400 billion stars in this milky way galaxy...

I didn't realise there were so many...  How big is the Milky way, isn't it something like 100 million LY across?

If the human history of Earth is anything to go by, the existance of civilizations may be all too brief for a two way radio conversation with someone tens of hundreds of light years away.