BARREL Launch Paths (IMAGE) NASA/Goddard Space Flight Center Caption Six BARREL balloons flew above Antarctica during a January 2014 solar storm. The different-colored tracks trace out the paths of the balloons. Together, the measurements from these balloons showed how Earth's magnetic field shifts during a solar storm. The BARREL balloons were launched from Antarctic research stations SANAE IV and Halley VI. Credit Credits: NASA/Halford, et al. Usage Restrictions None 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.