These kids may work the audience like old pros, but unlike many business vets, they're completely lacking in cynicism. Their goals are gargantuan, and -- if you take their word for it, anyway -- they have every expectation of reaching them. One team, Final Frontier Apparel, wants to devise a space suit fitted with microprocessors that monitor astronauts' vital signs and keep their muscles and bones in top condition through electrical stimulation. Another, ALGAE (Advanced Lunar Greenhouse Air Exchange), aims to grow algae in enclosed bioreactors to create a limitless source of breathable air on the moon. "We want to go further than exploration," says ALGAE team member Ele Simmons, who sports a jaunty Einstein necktie. "We want people to be able to go to the moon and have a constant supply of oxygen." And then there's the Latino College Preparatory Academy Extreme Science team, which is developing a solar array it claims will cost $5,000 but produce as much electricity as a typical $20,000 residential installation. "We do have a lot of competition," admits 17-year-old Roberto Larios, "but we've found a way to reduce the cost of solar power to one-fourth of the original, and we already have support from IBM and NASA."