‘Numerous balloons soar to the edge of space to observe the eclipse’

As the much-anticipated eclipse approaches, many Americans are eagerly awaiting clear skies to witness the spectacular event. However, for the National Eclipse Ballooning Project, which is launching approximately 650 high-altitude balloons today, cloud cover is not a concern. These biodegradable latex balloons fly at altitudes of 70,000 to 115,000 feet, well above commercial airline altitudes and out of reach of any potential obstruction from clouds.

Carrying instruments built by undergraduate science and engineering students from over 75 institutions along the eclipse’s path, these balloons provide a unique opportunity to study the atmosphere. Mary Bowden, a professor of aerospace engineering at the University of Maryland, explains that the eclipse’s shadow cools a column of air, creating an opportunity to observe its movement from south to north across the U.S.

Apart from scientific research, the balloon project offers students valuable hands-on experience in building and troubleshooting under extreme conditions, skills essential for future endeavors in space exploration. The Maryland team, launching from Portland, Indiana, aims to livestream the eclipse from their balloons, allowing viewers to witness the shadow moving across the Earth.

For those unable to witness the eclipse in person, NPR will be sharing highlights from across its network throughout the day, capturing the magic of this celestial event.