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Why are rainbows always in the shape of an arch?

Dr. Aris Thorne
Dr. Aris Thorne
Senior Science Editor · Feb 25, 2026 · Updated Apr 13, 2026

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20
Words

1 min
Read Time

#464
of 500 in Nature

-72%
vs Category Avg

The Short Answer

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Analysis

Key Concepts: Please, video, instead

This explanation focuses on please, video, instead and spans 20 words across 1 sentences. At 72% below the average Nature explanation (71 words), the answer takes a direct, no-frills approach — sometimes the simplest explanation is the most effective.

What This Answer Covers

This is a focused, single-point answer that gets directly to the core of the question without detours.

How This Compares in Nature

Ranked #464 of 500 Nature questions by answer depth (top 94%). This is a brief primer — the answer is intentionally short. For questions with a single core mechanism, brevity can actually be a strength.

Frequently Asked Questions

Is there a simple explanation for why rainbows always in the shape of an arch?

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How detailed is this explanation compared to similar Nature questions?

This is a brief answer at 20 words, ranked #464 of 500 Nature questions by depth. The key concepts covered are please, video, instead.

What approach does this answer take to explain rainbows always in the shape of an arch?

The explanation uses direct explanation across 20 words. It is categorized under Nature and addresses the question through 1 analytical lens.