BETA
Chapter 1
How a total solar eclipse works
Chapter 2
Chasing the path of totality
Chapter 3
The ultimate viewing experience in Iceland
Chapter 4
Spain's spectacular low-horizon sunset
Chapter 5
Safe observation and citizen science
Ch 1 · How a total solar eclipse works
futura Play the Eclipse Ring Sparkler game and simulate the stunning diamond ring effect of the upcoming August 12, 2026 total solar eclipse.
futura 2026 Total Solar Eclipse
Moon blocks the sun, Day turns to night, Europe goes dark!
futura Discover the unique features of the August 12, 2026 total solar eclipse and where to view it in this educational infographic.
Fun Fact
Solar alignment: The Sun is 400 times wider than the Moon, but also 400 times farther away, creating a perfect fit.
futura An educational diagram illustrating the two parts of a cosmic shadow during the total solar eclipse of August 12, 2026.
Glossary
totality (noun)
The period during an eclipse when the light of the eclipsed body is completely blocked. On August 12, 2026, this phase will last over two minutes off the western coast of Iceland.
The period during an eclipse when the light of the eclipsed body is completely blocked. On August 12, 2026, this phase will last over two minutes off the western coast of Iceland.
Quiz
What are the bright spots of sunlight peeking through lunar valleys just before totality called?
Quiz
Which part of the Sun's atmosphere is only visible to the naked eye during a total solar eclipse?
Quiz
What astronomical term describes the straight-line alignment of three celestial bodies like the Sun, Earth, and Moon?
Quiz
What causes the 'diamond ring' effect just before the Moon completely covers the Sun?