RocketSTEM Issue #8 - July 2014 | Page 40

Astronauts Alan Bean and Ted Freeman in 1963. ges ce Ima Credit: NASA via Retro Spa over Florida. John Aaron, a quick thinking 24-year-old engineer recalled a little used switch in the capsule. His recommendation to “switch SCE to AUX” restored power to the mission but astronauts Charles “Pete” Conrad, Jr., Richard Gordon, Jr. and Alan Bean were still in low earth orbit without a functional navigation system. They were able to reset the guidance system by sighting key stars allowing the mission to continue. An explosion in an oxygen tank crippled power generation aboard Apollo 13 en-route to for a Moon landing. The capsule, service module and lunar lander were left with limited power forcing navigation systems to be switched off. the explosion further complicated things making spotting 38 38 Group shot of astronauts who trained at Morehead during 1966. Credit: NASA via Retro Space Images module pilot John Swigert to locate stars Altair and Vega hours before a safe reentry. Apollo 13 astronaut Jim Lovell even passed on some of what he learned at Morehead 25 years later to actor Tom Hanks. Hanks visited Lovell at his Horseshoe Bay, Texas home to prepare for the Apollo 13 movie. Lovell took him at Morehead. “Antares and Nunki, the two stars we saw Donald K. Slayton was the last astronaut to train at Morehead in 1975 for the Apollo-Soyuz mission. The program ended as NASA moved on to the Space Shuttle and its more reliable guidance computers. You can visit The Morehead Planetarium and Science Center on the campus of the University of North Carolina at Chapel Hill and learn about the same stars under the same dome as 62 astronauts. Or visit the center’s website at www.moreheadplanetarium.org. www.RocketSTEM .org