Talk about jackpot. Ira Curry, of Stone Mountain, Georgia, and someone from San Jose, California, are the two winning ticket holders of Tuesday's massive $648 million Mega Millions, the second-largest jackpot in U.S. history. Curry was in her car listening to the radio when her daughter told her over the phone that she had won. "I was in a state if disbelief. I still didn't believe it when my daughter told me," she told Georgia Lottery President Debbie Alford. After taxes, her winnings will be $120 million. Odds of hitting Tuesday's jackpot were about 1 in 259 million—that's less likely than getting killed by an asteroid.