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Contact: David Hosansky
hosansky@ucar.edu
303-497-8611
National Center for Atmospheric Research/University Corporation for Atmospheric Research
Caption: Slender hoses, blown into arcs by the wind, partially fill the balloon with helium before launch. A large portion of the balloon is left unfilled so it can expand as it ascends into the stratosphere, where air pressure is considerably lower.
Credit: Carlye Calvin
Usage Restrictions: *News media reproduction to illustrate this story and nonprofit use permitted with proper attribution as provided above and acceptance of UCAR's terms of use.
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