/sci/ - Science & Math

>>10581093
I was at the University of Colorado where Dr. Michael Russell gave a guest lecture about origins of life on earth. I personally asked in a Q&A session on the importance of size of Mars’ difference compared to Earth, being my thesis is pertaining to the geological history of mars. He said it was impossible. Dr. Michael Russell is one of NASA’s leading Astro-biologist.
https://nai.nasa.gov/directory/russell-michael/
https://www.google.com/amp/s/www.astrobio.net/mars/could-green-rust-be-a-catalyst-for-martian-life/amp/
The same deal applies with Europa. Sure, water exist and nobody is debating that. But that doesn’t imply life. Not one bit. That water is stuck between two giant layers of ice that are hundreds of Kms long. Those “cat scratches” on its surface implies that the water is extremely saline. That’s exactly what that paper says. The surface temperature of Europa is on average -160 degrees Celsius.
You’re arguing water and saying that only implies life when that is completely not the case. As I have stated before in this thread water does not imply life. There are a million other things that are needed.
You can say “well all life on earth needs water”. All life on earth has several things in common. Example: it is hypothesized that we need plate tectonics to have life. Mars, Venus, Europa, Titan, and every other body in our solar system does not have plate tectonics like on earth.
In order for that “chemical soup” you need active volcanism. In order for you to create proteins out of poly peptide bonds you need that right pressure of water and organic chemicals, etc.
Water does not imply life. Plain and simple. Liquid water is pretty much everywhere in our solar system and our galaxy in all the exoplanets we have studied as well. That does not solely and singularly imply life.

Post /sci/ related photos that fill you with a sense of awe.