In two separate endeavors next year, Rodd Millner, an Australian ex-commando, and Cheryl Stearns, a US Airways pilot and skydiving world-record holder, plan to ride giant balloons up to 130,000 feet
(about 25 miles) and then jump out. Both claim that free-falling through the ozone layer will push back the boundaries of science. Undoubtedly, their
This article was originally published with the title Taking the Plunge.