Life on Mars?

[highwaystar101]

Zucas said:
Yea just because Mars has water does not mean life exists or life has ever exists. We earthlings are obviously going to have somewhat of a bias when it comes to water considering creatures on this planet are made up of mainly water and then carbon based things. So we are going to think for other life they need water as well.

Unfortunately that isn't a very strong argument because just because we are made up of water doesn't mean life necessarily requires it. Hell life might be something we haven't even thought of or something we may not even consider "life" at first glance.

As for colonizing another planet, then indeed water would be a requirement for us to live on so that is good for us to eventually set up livable areas on Mars which we will eventually do.

The importance of water is not that creatures are made if it, but that it is an inert liquid so that organic molecules and all the other biological stuff that makes life have a chance to float towards each other and react. To form life without water you would need to find another type of inert liquid to host the beginnings of life.

Titan has entire lakes made of hydrocarbons, even though this wouldn't offer a particularly stable liquid for life to form it is still one of the most likely places to find life in our solar system because it offers some kind of host for life to form in.