This Stadium-Sized Balloon Could Unlock Deep Space Mysteries

Apr 26, 2017 at 6:27 PM ET

A NASA balloon is going into the atmosphere to study galaxies far, far away. The stadium-sized balloon will detect ultra-high energy cosmic particles as they penetrate Earth’s atmosphere. This will help scientists understand how these rare cosmic particles make it to Earth. The balloon will circle the planet two or three times during its 100-day journey.