This is amazing to me. We, humans, currently have 5 craft orbiting one planet, Mars, and 2 landers on its surface. All this to help satisfy our need to learn. A comet happens to come by so 3 of them duck behind Mars for a short period just to be safe and then all 5 orbiters proceed to study the comet and send data back to us on Earth… and all this was accomplished by 5 small groups of people with computers sitting in control rooms in various countries here on Earth. What a great time to interested in science! Check out the article from Sky and Telescope.