Total Solar Eclipse in Spain: NASA Balloon Chase and the Science Behind Totality

A team travels to Burgos, Spain, to witness a total solar eclipse alongside NASA's balloon project, using the event to investigate open questions about eclipse frequency, shadow bands, and the sun's appearance during totality.

■ Eclipse science and patterns
- Why the Northern Hemisphere gets more total eclipses
- Why there are always at least two solar eclipses per year
- Why the sun appears white only during totality

■ Observing effects on the ground
- Pinhole projections create crescents and flipped images
- Shadow bands: faint moving patterns and their possible causes

■ NASA missions and historical context
- Balloon launch to the edge of space and payload recovery
- Historical eclipse discoveries: helium and "coronium"

Viewers interested in astronomy, eclipse chasing, and the practical science of observing a total solar eclipse will learn how eclipses work, what to look for on the ground, and how NASA studies them from balloons and jets.