CAPE CANAVERAL, Florida (CNN) -- An unexplained problem with a key computer system has forced NASA to scrub Tuesday's planned launch of the space shuttle Endeavour. The earliest Endeavour could ...

Time-lapse of Space Shuttle Endeavour stacked with an external tank and pair of solid rocket boosters for a exhibit at the California Science Center. Credit: California Science Center | time-lapse by ...

KENNEDY SPACE CENTER, Florida (CNN)-- With space shuttle Atlantis on its way to upgrade the Hubble Space Telescope, that leaves one shuttle, Endeavour, at the ready on the other launch pad here.

All of that hardware was destroyed after space shuttle Endeavour was stacked," said Jenkins, who today is director of Endeavour's exhibit at the California Science Center in Los Angeles.