Can volcanoes also change the colour of sunsets?

In one line

The rule

Volcanic eruptions can release ash and gases into the air, which scatter sunlight and change the colours we see at sunset.

Let's understand it simply

Imagine you are making tea and add a lot of milk. The tea looks lighter because the milk spreads the light. In the same way, when a volcano erupts, it throws ash (tiny rock pieces) and gases high into the sky. These tiny things float in the air and spread sunlight in different directions. When the sun sets, its light has to travel through more of this ash and gas. This makes the sky look redder, pinker, or even purple, just like adding more milk changes your tea’s colour.

How it works

1. A volcano erupts and throws ash and gases high into the sky.
2. The ash and gases spread out and float in the upper air.
3. When the sun is low (at sunset), its light passes through this layer.
4. The ash and gases scatter (spread out) the sunlight, especially the blue and green parts.
5. More red and orange light reaches your eyes, making the sunset look brighter and more colourful.

The story behind it

In 1883, a volcano called Krakatoa in Indonesia erupted. People all over the world saw very bright red and purple sunsets for months. Artists even painted these sunsets. Scientists later found out that the ash and gases from Krakatoa had spread around the world, causing these colourful skies.

Where you see it in real life

• After a big volcanic eruption, sunsets can look very red or purple for weeks.
• In India, if a volcano erupts in Indonesia, you might see brighter sunsets for some days.
• Sometimes, the sky can look hazy or smoky after a volcanic eruption, changing the sunset colours.
• Photos of sunsets after famous eruptions (like Mount Pinatubo in 1991) show very bright and unusual colours.

Why it matters

• Helps scientists study how volcanoes affect the air and weather.
• Shows how far volcanic ash can travel—sometimes across continents.
• Reminds us that natural events can change what we see every day.
• Artists and photographers often capture these beautiful sunsets.

Common mistakes

• Thinking only pollution changes sunset colours—volcanoes can do it too.
• Believing the effect is only near the volcano. In truth, ash can travel far and affect sunsets in other countries.

Remember it

Volcanoes can paint the sky with extra colours at sunset by spreading ash and gases that scatter sunlight.