(CAPE CANAVERAL, Fla.) -- NASA engineers keep making grim discoveries as they examine the shuttle Discovery.
The spacecraft, which was supposed to have launched Nov. 5 on the shuttle program’s penultimate mission, was grounded because of a hydrogen leak and cracks on the external fuel tank.
On Monday, NASA engineers found a fourth crack about three inches long on a section between the inside liquid oxygen tank and the liquid hydrogen tanks.
Discovery will stay on the launch pad at Cape Canaveral, Florida until all the repairs are made, but time is of the essence. There’s a launch window that runs between Nov. 30 and Dec. 6. If NASA misses that, it’s likely Discovery won’t make its last mission to the International Space Center.
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