Kind: captions Language: en you're watching a Nova science Now video [Music] podcast my condition okay does the capsule look like it's okay over capsule looks good from here over home to Earth comes the Voyager tears of thrilled lines of proud Americans in ceremonies at Mercury control center President John F Kennedy presents the a distinguished service medal to Astronaut John Glenn all of the glory and glamour aside what is it really like being an [Music] astronaut it is pretty physically and mentally training this is quite an experience that year going through for the past year and a half Mike mamino has been training for the upcoming hub repair Mission as a lead space walker and mamino can tell you that being an astronaut isn't all zero gravity and freeze-dried ice cream the physical part of it is you're in the space suit and you're in the suit for about 8 hours from the time they put you in the time you get out you good there's no food near with you so you have to have a good breakfast you do have a drink bag so you can drink water while you're doing this but you really need to be in the best shape you can be in it's also mentally fatig faing because you have to think about what you're doing if you're doing oops you get in trouble you got to really concentrate on what's going on you can't think about what you're going to what you're going to have for dinner that night although you might like to but you really need to think about what you're doing it kind of gets to you in those last couple hours you could get fatigued and start making the mistake you really wouldn't want to make mamino and his team will be doing everything from replacing batteries and insulation to intricate repair work on one of Hubble's main cameras every space mission is dangerous and even if the astronauts remain safe one small mistake could compromise the world's most famous telescope so training is Paramount preparing astronauts here on Earth for a mission in space is a challenge in itself NASA relies heavily on the neutral buoyancy lab the neutral buoyancy lab is a fancy name for a big giant pool we can fit a whole space shuttle in here plus a whole Space stage it's huge they try to get us neutrally buoyant and that enables us to practice our space walking we can egress the space shuttle and move along the hand rails and work with the telescope and it's very close to learning the uh the body positioning and the skills you need to Space Walk an astronaut is only part of the picture behind every NASA Mission there is a vast team of experts who play a huge role in the preparation of the flight team with their coaches their teachers their flight controllers and their friends we write all of the procedures for the spacewalk which crewman's going to do what who's better in this area versus that who's going to be on the arm and we make that into one continuous procedure that we just update constantly and the choreography is just down to the dime so that we don't waste any time each Eva or extra vehicular activity that an astronaut is scheduled to perform in space is painstakingly practiced here on Earth dozens of times over a course of years all in an effort to work out the Kinks well I see there's a list of things you can screw up and what you want to do is screw up get check off as many of that list as you can on the ground so when you get to space there's only a couple of them left no training here on Earth however can entirely prepare someone for an experience that is quite literally out of this world you just have to lift your head or your eyeballs and look around you and it's the most beautiful site you've ever seen so you're in some ways you're totally prepared to do your work but the the experience of being out there is just so unique uh and it's it's wonderful it's the best thing in the world to learn more about mik mamino in the upcoming Hubble repair Mission watch Nova science now airing Wednesday July 9th on PBS or for more funs science stories visit us online at pbs.org NOA scienc now