The long answer is... While many companies mention a CS degree requirement for Sysadmin Jobs, I have found that they usually leave out the "or equivalent experience" in the offering to cut down on the truly inexperienced admins applying for any sysadmin position. I personally don't have a degree but this has never prevented me from getting a job. Traditionally, their has been little crossover between a CS degree and good sysadmin ability, though this may be changing nowadays with some schools offering a glimpse into what we do. Just know that 1) there are good IT jobs out there and 2) you don't need a degree to get it. I'm living proof. :)

And if NASA had found some "alien" bacteria I still highly doubt we would know anything about it.