Similarly what we do know of other solar systems / galaxys shows thousands of not a hope of life and only a couple have been listed as being maybe possibles.
I shall try making this post again, the last attempt seems to have vanished.
At last count there are roughly 4000 identified planets, and I think the calculated number for our galaxy is about 40 billion.
It would be a good idea for people to define want they mean by life and I would also suggest the word intelligent. The two terms are being bandied around in this thread without any thought to the fact that in the context of this topic, they have a very specific definition.
Good idea. I feel also life and evolution are being confused. Here are my interpretations of each
LIFE Anything that is an organism, commencing with a single celled organism. Complex life is multi celled and has a nucleus and DNA. Intelligent life has a brain.
CREATION The creation of a single cell organism by abiogenesis
EVOLUTION The change of an item of life over time, caused by adaptation to changing environments, random mutation (i.e. DNA malfunction) mutation of DNA by outside forces, i.e. radiation (possibly other factors) . The key is The change of an item of life over time, caused by adaptation to changing environments. A few simple examples are dark people whose dark skin has adapted from high levels of sun, to protect them. Flat nosed people is due to protecting the nose and lungs from freezing temperatures. Two iguanas of the same exact species are on two islands in the Galapagos. One is "normal" the other has no food due to the island, they are now marine iguanas. The live literally miles apart and have never been able to interact. These three simple examples are where nature has adapted the life form to manage in its environment.