We Killed the Little Green Men

Remember those probes NASA sent into space in the 70s and 80s, looking for life in outer space? 'Take me to your leader', et al? Well, turns out that they may have found the leader, and have killed him/her/it by mistake. And all his/her/its followers too. Apparently they were looking for life forms supported by water, like most of the ones we have on earth, and forgot to consider that some things may be different in outer space. So by pouring water on Martian soil and heating it, they may have drowned and baked any life that was hanging out on Mars. I can just see one little martian saying to another 'I KNEW there was a good reason we didn't like the neighbours...'. pffft. sizzle.