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LIfe and Legacy of ISON - the "Comet of the Century"

The so called “comet of the century” ISON fizzled out shortly after passing close to the Sun on November 28th.  Some scientists think, however, that some small remnants of the extraterrestrial ice ball may still be around.  We’ll be talking with Dr. Matthew Knight, an astronomer who has been following and studying ISON and he’ll tell us what happened to the comet after its brush with the sun as well as what scientists have been able to learn from it. Also on our program today... Mexican officials found the container of radioactive cobalt 60 that was stolen this past week in Mexico.  Police sealed off the field where the cobalt was found, saying there was no danger to people nearby. A new report from the World Health Organization says as many as 500-thousand people suffer spinal cord injuries every year. Coral sperm in Australia's Great Barrier Reef is being cryogenically frozen to protect some of the animal species from extinction.   Using stem cell technology, scientists have succeeded in creating functional lung cells. Scientists in Australia are listening to their local FM stations with a sensitive space telescope… not to listen to the latest pop tunes, but to locate potentially dangerous space junk. China launched its first robotic expedition to the moon's surface; the lunar probe contains the Jade Rabbit, a buggy that will travel over the lunar surface. And, a new device that’s being developed aims to make diagnosing AIDS easier, less expensive and more accessible for people in developing countries.