That is indeed awesome but I would argue that it also means we would need to undertake a much more thorough search to find out of mars is indeed a dead planet. Once we land a large concentration of biological matter there -- we won't have an opportunity to look again without dealing with massive potential for cross-planetary contamination.
Of course, it's a trade off and it's great news if we ever had to undertake a crash program to get at least a few humans and/or earth originated genetic material off planet with any hope of it surviving without extensive terraforming.
Of course, it's a trade off and it's great news if we ever had to undertake a crash program to get at least a few humans and/or earth originated genetic material off planet with any hope of it surviving without extensive terraforming.