On eclipse day, hundreds of students will send up balloons for science
Briefly

It's an opportunity to make unique atmospheric measurements that can only be done during an eclipse, and a chance for students to learn skills they may someday use to launch satellites and astronauts into orbit.
As they fill with helium, they begin to take shape two white, upside-down teardrops bobbing gently in the spring air.
Read at www.npr.org
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