NASA's space shuttle Discovery takes last flight (photos)

[From the site:]
This week's launch of the Space Shuttle Discovery's Mission STS-133 will mark the end of an era for NASA.

Since its inaugural launch on August 30, 1984 (Mission STS-41-D), Discovery has spent more than 322 days in space, completing 5,247 orbits around the Earth, delivering dozens of astronauts into the cosmos, and playing host to hundreds of research projects.

And some amazing pics at this link.