Space Shuttle Launch Scrubbed for Wednesday Morning

Discovery on the launchpad. Credit: NASA TV

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NASA officially scrubbed the second attempt for launching the STS-128 mission. “The last half an hour or so, a problem cropped up with a fill-and-drain valve in the bottom part of the shuttle, the aft part of the shuttle, related to the liquid hydrogen,” said NASA TV launch commentator Allard Beutel. “This particular valve … gave indications it did not close when it was commanded to.”

No word yet on what might be needed to replace the valve or restore it to normal operation. NASA is currently targeting the next launch attempt for Friday at 4:22 GMT (12:22 am ET) pending a review analysis on the valve issue.

NASA only has until August 30 to launch Discovery or the flight will be delayed to mid October because of upcoming Japanese and Russian space station missions and a conflict with the Air Force Eastern Range. We’ll keep you posted.

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Nancy Atkinson

Nancy has been with Universe Today since 2004, and has published over 6,000 articles on space exploration, astronomy, science and technology. She is the author of two books: "Eight Years to the Moon: the History of the Apollo Missions," (2019) which shares the stories of 60 engineers and scientists who worked behind the scenes to make landing on the Moon possible; and "Incredible Stories from Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos" (2016) tells the stories of those who work on NASA's robotic missions to explore the Solar System and beyond. Follow Nancy on Twitter at https://twitter.com/Nancy_A and and Instagram at and https://www.instagram.com/nancyatkinson_ut/