<font color="yellow"> And science can wait. The information will always be there. But we need to move forward agressively with space settlement. <br /><br />As soon as humans sets foot somewhere, it'll be impossible to tell if any microbes found were already there or if they hitched a ride from Earth.... </font><br /><br />You have a point although your statement is innacurate.<br />There are many ways to tell if an organism hitched a ride from Earth. We have a fairly good grasp of genetic engineering now. We know how to do DNA sequencing....<br /><br />But, as I said you have a point. It is preferable to study uncontaminated ecosystems whereever they may exist.<br /><br />However, I am primarily tlaking about the Moon. And on the Moon there are NO living organisms. That is another reason it makes sense to build colonies there. <div class="Discussion_UserSignature"> <font size="2" color="#0000ff"><em>The only way to know what is possible is to attempt the impossible.</em></font> </div>