RocketSTEM Issue #11 - April 2015 | Page 178

Posing for the STS-125 crew portrait, from left, are astronauts Michael J. Massimino, Michael T. Good, both mission specialists; Gregory C. Johnson, pilot; Scott D. Altman, commander; K. Megan McArthur, John M. Grunsfeld and Andrew J. Feustel, all mission specialists. The STS-125 mission was the final Space Shuttle mission to visit the Hubble Space Telescope for repairs and upgrades. Credit: NASA Grunsfeld had also been present at that meeting when Sean O’Keefe announced the cancellation of all future Hubble repair missions. Grunsfeld had by that time, visited the telescope in orbit twice. Though he was disappointed, Grunsfeld continued to spend time working on possible scenarios for the robotic repair missions to Hubble that had been suggested and other in-orbit repairs that did not include using humans. The National Academy of Sciences had also looked at robotic mission to service the telescope and had concluded that it was in no way a feasible option and in light of the scrutiny of the return to flight changes post Columbia they said a Hubble repair mission should be reassessed, that of course including humans. When Sean O’Keefe announced his resignation as NASA Administrator in December 2004, members for the senate, the media and science community and those within NASA saw hope for the telescope’s servicing mission to be reinstated. Now that Michael Griffin had been appointed Sean O’Keefe’s replacement, he literally took just two months to announce that he actually disagreed with Sean O’Keefe’s decision, and that he would now consider sending a shuttle again to repair Hubble, maybe because he had close links to the telescope himself, given he was as an engineer and he had previously worked on Hubble’s construction. He totally and utterly respected the discoveries the telescope brought to the science community and wider public audience as a whole. When STS-114 the return to flight mission post Columbia was deemed a success and was then was then followed by STS 121 all the lessons learned and improvements in flight mission management, the managers and engineers started to work on a plan that would see a return to Hubble that would still adhere to the Columbia enquiry requirements. On October 31, 2006, a major milestone was achieved, Michael Griffin finally announced that the Hubble servicing mission was reinstated and should be scheduled for 2008. He also announced the crew that would fly the mission, which included astronaut and physicist John Grunsfeld. On finding out about the reinstated mission Senator Mikulski said “The Hubble telescope has been the greatest telescope since Galileo invented the first one. It has gone to look at places in the universe that we didn’t know existed before” (We know it wasn’t Galileo that invented the telescope, but we know what she meant) Once the mission had been agreed it was then important to schedule the mission to fit in with the existing flight manifest. originally the STS-125 mission was assigned to space shuttle Discovery with a planned launch date sometime around May 2008 but delays to several space shuttle missions resulted in yet another change in mission ordering, and the orbiter assigned to STS125 was eventually changed from Discovery to Atlantis. Following tropical storm Fay in August 2008, Atlantis was rolled from one of the three Orbiter Processing Facility (OPF) to the huge behemoth that is the famous Vehicle Assembly Building (VAB), where it was mated to the external fuel tank (ET) and the solid rocket boosters (SRBs) some issues were then encountered during the stacking process, and more terrible weather due to Hurricane Hanna