Shuttle Discovery Landing Delayed

Last Updated at 9:08 a.m. ET

Overcast skies at the Kennedy Space Center have forced a wave-off of the second and final landing opportunity today for space shuttle Discovery.

The next chance to land will be Tuesday at 7:33 a.m. ET.

NASA will also staff Edwards Air Force Base in case continued bad weather in Florida forces them to land in California.

By daybreak today, the rain that drenched Florida's Kennedy Space Center overnight had started moving offshore. But thick clouds lingered.

Mission Control skipped the shuttle first landing opportunity Monday morning and instead aimed for the second slot at 10:23 a.m.

For more info:
CBS News' Space Place: STS-131 Mission Update
NASA Shuttle Missions

Mission conmmander Alan Poindexter and his crew are returning from the International Space Station after stockpiling it with supplies, science experiments and extra spare parts, including a tank full of ammonia coolant. It took three spacewalks to install the tank.

Discovery has enough supplies to remain in orbit until Wednesday. Regardless of when the shuttle returns, the volcanic eruption in Iceland and cloud of ash over Europe will pose no concern, Lunney said. The shuttle won't be anywhere near that part of the world during re-entry.