You're part of a space shuttle mission. You train the way every astronaut trains. You can even eat the same foods the astronauts eat. Jenni Waicukauski, a junior at Bloomington High School South, did that and plenty more. She and more than 140,000 other kids from around the world have attended programs by the U.S. Space and Rocket Center in Huntsville, Ala., since 1982. "When I was little, I