These are images of myself and the NASA Neutral Buoyancy Simulator at Marshall Space Flight Center, Huntsville, Alabama. I used to work as a safety diver for Shuttle/ SpaceLab and ISS tests. I had a really great time, but decided to finally give it up after nearly falling asleep (in the tank and in full scuba gear) after participating for the 50th test of the "Ease/Access" experiment which was a test for ISS assembly done from the Shuttle cargo bay. Here's a little bit of history about the tank which was built in the late 1960's`: The simulator was completed in 1968 and was used for a variety of mission training ranging from Apollo to the International Space Station. I had the privilege of training Shuttle era astronauts in the 1980's and am pictured in the color images. I really enjoyed working with people like Story Musgrave, Bruce McCandless and Ron McNair. I dove with Ron McNair about 3 months before his ill fated flight aboard the Challenger. He had flown previously and I asked him what he enjoyed most as we were refilling our scuba tanks. He told me that Re-entry was the best part of the flight and described the intense colors of ionized gas as the Shuttle made its way back into the atmosphere. The b/w image at the bottom right is the SkyLab mock up. At the bottom left is Werner von Braun checking the S-IVB Aft Dome in 1967. The next day, astronauts Gordon Cooper, Jack Lousma, and Bruce McCandless performed the same task in scuba gear. When informed of this, von Braun commented, "Misleading! With scuba gear it is a cinch. The pressurized suit is what makes it difficult!" For more information about the Neutral Buoyancy Simulator: https://en.wikipedia.org/wiki/Neutral_Buoyancy_Simulator Please visit Owl Mountain Observatory for the latest astrophotography from my observatory: https://www.facebook.com/OwlMountainObservatory http://owlmountainobservatory.com