David777
Well-known Member
- Location
- Silicon Valley
You seem to be relating what you think you heard probably less than accurately. Scientist have speculated the possibility that pieces of meteor and or comet collision ejecta may carry organic life between planets. The hypothesis is a mature and reasonable idea....They never seem to run out of rather incredible theories. During an episode I watched earlier, it was suggested that the human race did not originate on Earth, but we came from Mars. I thought that my ancestors came from Germany and ...
One way that has been considered more likely is how robust Earths extremophile life has been found to be, some forms deep miles below surfaces in solid rock for millions of years. Then there are weird creatures like tardigrades that have been found to actually survive significant periods outside our launched spacecraft.
https://en.wikipedia.org/wiki/Tardigrade