Check out this interesting article on NPR about what extra-terrestrials might really be like...Fortunately, I think we're safe from dealing with any Jabba the Huts on Mars. Whoo! Personally, I'm not really all that excited about the day when we do find other life forms out in space. I think I've seen too many movies (Signs, Independence Day, Mars Attacks!, part of Alien...) and now I have an (un)healthy fear of aliens. My mother (Ms. Sciencepants) would probably disagree with me but I'm cool with not having a close encouter with an alien...Or I'd rather not have one burst out of my gut in a diner. Weird, right?
"It's not just that we've given up hope of finding intelligent beings, it's worse than that. The life we now expect (or rather hope) to find is usually imagined as depressingly small, pebble-sized, or even smaller, like the period at the end of this sentence."