Atlantis Launches on Final Space Shuttle Mission

Space shuttle Atlantis has launched for the final time, for the last mission of the space shuttle program. The crew of four is heading to the International Space Station. Launch occurred at 10:29 EDT (15:29 UTC), and despite an unfavorable weather forecast, Atlantis and her crew beat the 30% odds that was predicted for the probability of launch. There was a slight delay and a hold in the countdown (about 2 minutes) when a problem with the vent arm retraction on the launchpad (the "beanie cap" over the external tank) was detected. The launch control team was able to look at the issue, and determined it was safe to proceed with launch.

Our team of writers and photographers will provide more details and images, soon, (we've heard the communications at KSC are completely bogged down).

As for the future, NASA's Chief Technologist Bobby Braun may have said it best via Twitter: "This is not the end of human spaceflight. It is not even the beginning of the end. But it is, perhaps, the end of the beginning."

And the STS-135 mission is just beginning as well. We'll provide full coverage of the final space shuttle mission for the next two weeks.

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Nancy Atkinson

Nancy Atkinson

Nancy Atkinson is a space journalist and author with a passion for telling the stories of people involved in space exploration and astronomy. She is currently retired from daily writing, but worked at Universe Today for 20 years as a writer and editor. She also contributed articles to The Planetary Society, Ad Astra (National Space Society), New Scientist and many other online outlets.

Her 2019 book, "Eight Years to the Moon: The History of the Apollo Missions,” shares the untold stories of engineers and scientists who worked behind the scenes to make the Apollo program so successful, despite the daunting odds against it. Her first book “Incredible Stories From Space: A Behind-the-Scenes Look at the Missions Changing Our View of the Cosmos” (2016) tells the stories of 37 scientists and engineers that work on several current NASA robotic missions to explore the solar system and beyond.

Nancy is also a NASA/JPL Solar System Ambassador, and through this program, she has the opportunity to share her passion of space and astronomy with children and adults through presentations and programs. Nancy's personal website is nancyatkinson.com