Is it possible that some of life (if not all of life) originated from Mars not Earth?

[Jonathanaronda]

I have a feeling this belongs in the Chemistry section, but not really sure... hopefully I can get some answers about it...

 

I was reading: http://news.discovery.com/space/mars-life-120315.html and http://voices.yahoo.com/did-our-ancestors-come-mars-10203611.html

 

What do you think? Did some (if not all) of life originate from Mars? Love to hear your thoughts...

[Bauke]

I doubt it. It seems unlikely that the right set of chemicals on Mars would take a ride on a rock that ends up on Earth and then spreads to create life. Perhaps there have been areas on Earth where the right conditions did occur for life's chemicals to arise, even though scientists say that the conditions on Mars may have been better. I find the theory quite speculative.