When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Despiteongoing work to launch its next shuttleflight by July, NASA's greatest challenge lies ...

The target dates for the next two space shuttle liftoffs have been moved two days later, due to the impact of recent tropical storms on launch preparations, NASA said Friday. The space shuttle ...

Columbia accident investigators have shifted their focus farther down the space shuttle's left wing and onto a seal that may have developed a slit large enough to let in deadly heat. The seal is close ...