Alright, I'm just curious about how many are skeptical about colonizing Mars. Recent Phoenix Mars Mission find that the soil on Mars contains highly oxidizing substance perclorate, which is not suitable for life. But it does not necessary means life is completely impossible, and plus, the presence of water is confirmed, giving some hope of colonization.
For those who are interested,
Link: NASA Mars Exploration Website
Link: Phoenix Mars Mission Website (NASA)
Personally, I think it is possible but a lot of terraforming is required. Therefore I don't think it's possible to colonize Mars in near future.
Edit: I made a grammatical mistake, should be "Life on Mars", I hope theres no misunderstanding due to the title. :sweat: