The final blastoff for NASA's Endeavour—commanded by the husband of wounded Rep. Gabrielle Giffords—has been pushed back at least 10 days due to a scheduling glitch, reports Peter J. Boyer.
In this Feb. 4, 2011 file photo, astronaut Mark Kelly prepares to discuss his decision to command the final flight of the space shuttle Endeavour during a news conference at Johnson Space Center in Houston. Credit: Michael Stravato / AP Photo
