On Wednesday, August 12, 2026, a celestial spectacle unfurled across the Northern Hemisphere. While a narrow path stretching from Greenland and Iceland down through Spain and Portugal captured the coveted path of totality—Europe’s first total solar eclipse on mainland soil since 1999—hundreds of millions of skywatchers across North America, the UK, and mainland Europe experienced a dramatic partial solar eclipse.
What Is a Partial Solar Eclipse?
A solar eclipse occurs when the Moon passes directly between Earth and the Sun, casting a shadow across our planet.
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Total Eclipse: Observers inside the narrow central shadow (the umbra) experience total darkness as the Moon completely covers the Sun’s face.
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Partial Eclipse: Observers in the outer shadow (the penumbra) see a “bite” taken out of the Sun, turning the solar disk into a glowing crescent.
[ SUN ] ====> ( MOON ) ====> [ EARTH ]
|-- Umbra (Totality Path: Greenland, Iceland, Spain)
|-- Penumbra (Partial Path: US, UK, Canada, Western Europe)
Where and How Much Was Visible?
The appearance of a partial eclipse varies wildly depending on geographic location:
Why Partial Eclipses Are Still Spectacular
Even without complete daytime darkness, a deep partial eclipse creates unique optical phenomena:
