Weather again delays shuttle landing

(CNN) -- Weather conditions forced NASA to wave off a landing attempt for space shuttle Atlantis scheduled for 9:16 a.m. ET Saturday at Florida's Kennedy Space Center, the space agency said.

The next attempt will be at 10:46 a.m. ET at Edwards Air Force Base in California. The third attempt would be at 10:54 a.m. ET at Kennedy Space Center.

On Friday, NASA canceled two possible landing times because of a weather system that has dumped more than 2 feet of rain over parts of northeastern Florida.

That weather system is lingering in the Gulf of Mexico and continues to spread rain across the region.

NASA has listed six potential landing times on Sunday for Edwards, Kennedy and White Sands Space Harbor in New Mexico.

Atlantis launched May 11 for NASA's final repair visit to the Hubble Space Telescope. Atlantis astronauts conducted spacewalks during the mission to perform routine repairs and replace key instruments.

The mission was one of the most ambitious space repair efforts ever attempted. Hubble was released back into solo orbit Tuesday morning.

In space for 19 years, Hubble can capture clear images that telescopes on Earth cannot, partly because it does not have to gaze through Earth's murky atmosphere.