Dust, Smoke and Volcanoes

Tiny particles in the air can make sunsets even more dramatic.

Dust, sea salt and smoke can scatter and filter light in different ways, sometimes deepening the reds.

Wildfire smoke can make the sun itself look deep orange or red, even in the middle of the day.

After the huge eruption of Krakatoa in Indonesia in 1883, ash and gases in the atmosphere caused unusually vivid red sunsets around the world for months.

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