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The Planetary Society BlogBy Emily LakdawallaFarewell to Hubble, Obama Calls, Astronauts Testify to Congress as Shuttle is Set to LandMay. 22, 2009 | 14:13 PDT | 21:13 UTC
by Ken Kremer
Update -- WAVE OFF: After initially delaying re-entry by one orbit, NASA's STS-125 Entry Flight Director Norm Knight has decided to wave off all landing attempts on Friday. The continuing threat of low cloud ceilings, excessive crosswinds, thunder and heavy rain would not permit a safe landing. The astronauts will get a bonus day in space as the payload bay doors remain open. Weather conditions are forecast to improve slightly for Saturday. The next landing attempt has been rescheduled to Saturday at 9:16 AM EDT. Edwards Air Force base will be activated as an alternate landing site. Keep up with the latest news about Atlantis' landing at NASA's website. The crew of Atlantis bid a final farewell to Hubble when they released it back into space at 8:57 AM EDT on Tuesday, May 19 after completing all 5 spacewalks to service and upgrade the telescope. This was NASA's last mission to Hubble and thus the eyes of the crew are likely the last time humans will ever gaze upon her.
Astronaut Megan McArthur grabbed Hubble with the shuttle's robotic arm and lifted it out of Atlantis' payload bay to release it. Ground teams later opened Hubble's aperture door, which is the large shutter that protects the telescope's primary and secondary mirrors.
President Barack Obama called the Atlantis astronauts from the White House on Wednesday (May 20) to offer his congratulations on the dramatically successful and inspiring mission to save the iconic telescope. "I wanted to personally tell you how proud I am of all of you and everything that you've accomplished. Like a lot of Americans, I've been watching with amazement the gorgeous images you've been sending back and the incredible repair mission you've been making in space. I think you're providing a wonderful example of the kind of dedication and commitment to exploration that represents America and the space program generally. And these are traits that have always made this country strong and all of you personify them", said Obama.
"Well thank you very much, sir," Commander Altman replied. "I think you are exactly right, this mission has been an example of what our country can do as we work together. It's been the teamwork of all the folks on the ground in addition to the folks outside spacewalking, making this all come together and work for us." John Grunsfeld said, "Well, thanks very much Mr. President. I know we all believe that in our hearts. What always strikes me as being so incredible is that it's almost impossible to go into any K-12 classroom these days and not see Hubble images on the wall inspiring kids to do great things and maybe some of them to become astronauts some day and push our frontiers even farther. President Obama replied, "Well, I know that you've excited my 10-year-old and my 7-year-old. And they've got some images like that that they prize whenever we talk about space. And so, by allowing Hubble to continue on its journey, you've really allowed all of us to continue on our journey for growth and exploration". Today (May 21) for the first time in spaceflight history an astronaut crew orbiting the earth testified live from space before Congress. The STS-125 crew testified before the Senate Appropriations Committee, Subcommittee on Commerce, Justice, Science and Related Agencies, chaired by Senator Barbara Mikulski of Maryland. Mikulski and former astronaut Sen. Bill Nelson of Florida, spoke with the crew.
Sen. Mikulski said "We salute your daring, your bravery and your courage. You were willing to risk your lives." John Grunsfeld responded, "Hubble is the greatest science instrument of all time. It will help us understand where we come from. It's definitely worth it". Space Shuttle Atlantis has been cleared for de-orbit and re-entry on Friday May 22 after the now standard re-inspection of the thermal protection system revealed no problems with the protective heat shield tiles and no other systems malfunctions. Space Shuttle Endeavour has been released from stand-by duty as a possible ‘rescue shuttle' and has resumed normal processing directed towards a June 13 launch to the International Space Station (ISS). Atlantis cannot seek safe haven at the ISS. No one expected that a rescue shuttle would actually need to launch. The weather here at the Cape has been quite terrible for most of the last week following a beautiful day for launch. As of Thursday evening May 21, the weather forecast is currently "No Go" for a Friday morning landing at KSC. A low pressure system has brought 16 inches of rain to the Shuttle Landing Facility at the Kennedy Space Center in the last three days alone. The shuttle team is closely monitoring the threatening weather situation in Florida with a prediction of broken clouds at 4000 feet and a chance of thunderstorms within 30 nautical miles of the landing strip. Two landing opportunities are available at Kennedy on Friday. If the landing is waved off until Saturday, the landing strip at Edwards Air Force Base, CA will be activated for a total of 4 landing opportunities: Landing times for Saturday, May 23, 2009 (all times EDT) 9:16 a.m. -- KSC 10:46 a.m. -- EDW 10:54 a.m. -- KSC 12:24 p.m. -- KSC In preparation for landing, Atlantis' crew tested and confirmed that the ship's flight control surfaces and reaction control system thrusters are ready to support reentry and landing. View landing ground tracks here. Planetary Society volunteer Ken Kremer is reporting for us from the Kennedy Space Center, where he witnessed the launch of Space Shuttle Atlantis to the Hubble Space Telescope on May 11. Kremer is a research scientist and freelance journalist who spends his spare time giving public outreach presentations on behalf of The Planetary Society as a volunteer and NASA's Jet Propulsion Laboratory as a Solar System Ambassador. He also enjoys creating Mars mosaics. Thanks Ken!
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