A total solar eclipse will cross parts of the Northern Hemisphere on Aug. 12, 2026 [1].

This astronomical event is significant because it allows observers in the path of totality to see the solar corona, a phenomenon that occurs only when the Moon completely blocks the Sun. For many regions, this represents the first opportunity to witness a total eclipse in more than two years [4].

The path of totality will move across several countries and territories. Specifically, the shadow will pass over Greenland, Iceland, northern Russia, Spain, and Portugal [2]. Other parts of northern Europe will also experience the event, though the degree of coverage will vary by location [2].

Millions of people are expected to witness the eclipse as it moves across these regions [3]. The event occurs because the Moon passes directly between the Sun and Earth, casting a shadow that temporarily turns daylight into night [5].

Safety experts said there is a need for specialized eye protection. Because the solar corona is only visible during the brief window of total coverage, viewers must use certified solar filters to prevent permanent eye damage during the partial phases of the eclipse [2].

Astronomers said that the timing and trajectory of the shadow are precise. The movement of the Moon across the solar disk will create a dramatic shift in light and temperature for those situated within the narrow path of totality [5].

The path of totality will move across several countries and territories.

This eclipse marks a rare celestial alignment for Europe and the North Atlantic, drawing significant tourist and scientific interest to the Iberian Peninsula and the Arctic circle. Because total solar eclipses are infrequent for any single geographic location, the event provides a critical window for solar researchers to study the corona and for the public to engage with large-scale astronomical phenomena.