Balloon (IMAGE)

National Center for Atmospheric Research/University Corporation for Atmospheric Research

Balloon

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.

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.