Last shuttle spacewalkers make history above Earth

NASA completed its part in the construction of the International Space Station on Friday, with the final spacewalkers in the 30-year shuttle program attaching an extension boom.

NASA inspects damaged tiles on shuttle

NASA is examining seven heat shield tiles that appear to have been damaged during the shuttle Endeavour's ascent into orbit, but the US space agency said Wednesday there was no cause for concern.

U.S. astronaut corps evolves

Still hoping for that job as an astronaut, even as the last days of the space shuttle are winding down? You may want to practice your Russian.

Why space shuttle fleet is retiring, what's next

As the space shuttle program winds down, questions are flying about what's happening and why. The launch countdown began Friday for the second-to-last flight. Some answers about the end of the space shuttle:

Endeavour's last skipper thrives on speed, risk

(AP) -- Space shuttle Endeavour's commander, Mark Kelly, has spent his entire military career considering the options, weighing the risks, making a decision, then forging ahead.

Kelly: Giffords cleared to attend shuttle launch

(AP) -- NASA astronaut Mark Kelly says doctors have given his wife, Arizona congresswoman Gabrielle Giffords, approval to travel to Cape Canaveral this week to watch him fly into space Friday on the next-to-last shuttle ...

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