🤖 AI Summary
Overview
This episode explores the 2026 total solar eclipse from multiple perspectives, including ground observations in Spain, high-altitude balloon footage, and NASA's jet-based mission. It dives into the science behind eclipses, their patterns, and the fascinating phenomena they create, such as shadow bands and the discovery of helium.
Notable Quotes
- Looking at it in person, it is kind of cataclysmic. You gotta cry.
– Henry, on the emotional impact of witnessing totality.
- An eclipse led to discovering both a real element and a fake one.
– Emilia, on the historical discoveries of helium and the debunked coronium.
- During an eclipse, the crescents on the ground point the opposite way to the crescents in the sky.
– Gregor, explaining the optical effects of pinhole projections during an eclipse.
🌍 Why the Northern Hemisphere Gets More Total Eclipses
- The Northern Hemisphere experiences about 15% more total solar eclipses than the Southern Hemisphere due to the elliptical orbits of the Earth and Moon.
- The Moon appears larger in the sky during July, when the Earth is farther from the Sun, coinciding with the Northern Hemisphere's summer.
- This pattern will reverse in approximately 9,500 years due to the Earth's axial precession.
🌑 The Mechanics of Solar Eclipses and Their Frequency
- At least two solar eclipses occur every year due to the alignment of the Moon's orbit with the Earth-Sun plane during eclipse seasons.
- Up to five eclipses can happen in a year when the timing of eclipse seasons aligns with the lunar cycle.
- Every solar eclipse is accompanied by a lunar eclipse either two weeks before or after, as the Earth and Moon trade positions in their alignment with the Sun.
🔬 The Sun’s Color and the Discovery of Helium
- The Sun appears white during totality because filters used for partial phases are removed, revealing its true color.
- Historical eclipses led to the discovery of helium in 1868, when scientists observed a spectral line that didn’t match any known element.
- A later eclipse also suggested the existence of coronium,
which was later identified as highly ionized iron.
🌌 Shadow Bands and Optical Phenomena
- Shadow bands, faint rippling patterns on the ground, occur just before and after totality. They are caused by light refracting through atmospheric turbulence.
- Experiments dating back to 1905 attempted to study shadow bands at altitude, revealing their elusive and unpredictable nature.
- During an eclipse, pinhole projections (e.g., through tree leaves) create crescent-shaped shadows, and shadows become sharper in one direction due to the narrowing light source.
🚀 Filming the Eclipse from Space
- NASA launched balloons and a jet to capture the eclipse from unique vantage points.
- Balloons reached 92,000 feet, while a jet-mounted mission used stable equipment to study the Sun's corona.
- Historical efforts, like the Concorde in 1973, extended totality observation to 74 minutes, far surpassing the 2-3 minutes visible from the ground.
AI-generated content may not be accurate or complete and should not be relied upon as a sole source of truth.
📋 Video Description
What does an eclipse look like from the edge of space? We travelled to Spain for the 2026 total solar eclipse to find out. Sponsored by 80,000 Hours - Head to http://80000hours.org/veritasium to start planning a career that can help change the world for the better. By joining their newsletter, you’ll get a free copy of their in-depth career guide sent to your inbox.
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00:00 The 2026 Total Solar Eclipse
02:00 Why there are more total solar eclipses in the Northern Hemisphere
03:30 How we get 5 solar eclipses a year
06:20 Why the Sun turns white only during totality
09:27 How the eclipse faked an element
11:10 The weird shadows during the eclipse
14:06 Shadow band effect
17:00 Filming the eclipse from space
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Special thanks to the experts and collaborators who made this video possible:
The Montana State University NASA Ballooning Team, for working with us on this video and for the incredible footage of the eclipse from the edge of space.
Project Leads: Angela Des Jardins and Michael Walach
Students: Ava Arbogast, Isabel Besel, Ryder Cole, Daniel Graves, Mari Greene, Mikael Savage, Gabriel Sova, Addison Zumwalt
The Exploratorium Team, for providing their insights and footage from their livestream
© The Exploratorium
All rights reserved. Used and adapted with authorization.
The Exploratorium® is a registered trademark of The Exploratorium®.
http://www.exploratorium.edu
Michael Kirk for taking the time to chat with us and sharing his expertise.
NASA's Goddard Space Flight Center for speaking with us and for sharing details of their WB-57 aircraft eclipse mission.
The team at @astrumspace for their help and support on this video. Check out their video on how ESA’s Proba-3 mission uses satellites to create artificial eclipses in space and reveal the inner corona for the first time:
https://youtu.be/fv5lJjR6DmQ
Also, very glad we ran into https://www.youtube.com/@UCyC3HkaEzr7PBNuE2oPvQKg during totality! Check out his channel!
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References: https://ve42.co/EclipseReferences
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Special thanks to our Patreon supporters:
Adam Foreman, Albert Wenger, Alex Porter, Alexander Tamas, André Powell, Anton Ragin, Balkrishna Heroor, Bertrand Serlet, Blake Byers, Bruce, Bryan Ackermann, Chris Brewer, Data Don, Dave Kircher, David Johnston, David Tseng, EJ Alexandra, Evgeny Skvortsov, Garrett Mueller, Gnare, gpoly, Hayden Christensen, Hong Thai Le, Hybrid Minds, Ibby Hadeed, Jeromy Johnson, Juan Benet, Kelcey Steele, KeyWestr, Kyi, Lee Redden, Marinus Kuivenhoven, Mark Heising, Martin Paull, Meekay, meg noah, Michael Krugman, Orlando Bassotto, Parsee Health, Paul Peijzel, Robson, Sam Lutfi, Shalva Bukia, Sinan Taifour, Sweet_Nemo, Tj Steyn, Ubiquity Ventures, wolfee
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Credits
Writers: Emilia Gyles, Gregor Čavlović and Henry van Dyck,
Producer and Director: Emilia Gyles, Gregor Čavlović and Henry van Dyck
Presenter: Emilia Gyles, Gregor Čavlović and Henry van Dyck
Editors: Peter Nelson and Trenton Oliver
Assistant Editor: James Stuart
Animators: Archie Crofton and Emma Wright
Researchers: Sophia Rose, Aakash Singh Bagga, Shourya Shrivastava and Gabe Strong
Camera Operators: Archie Crofton, Emilia Gyles, Gregor Čavlović, Henry van Dyck, James Stuart and Peter Nelson
Thumbnail Designers: Abdallah Rabah, Daniel Ellacott & Ben Powell
Production Team: Jess Bishop-Laggett, Glen Griffiths, Matthew Cavanagh, Anna Milkovic, Justin St Laurent and James Dowse
Executive Producers: Emilia Gyles, Gregor Čavlović & Henry van Dyck