Why does our atmosphere appear blue from earth in sunlight, but when earth is viewed from space also in sunlight, it’s clear/invisible?
The sky appears blue from inside our atmosphere because the light refracts (bounces around). The blue part of the light bounces around more, so that's what we see. From the outside however, we're seeing the light that is reflected, not refracted.
The Short Answer
The sky appears blue from inside our atmosphere because the light refracts (bounces around). The blue part of the light bounces around more, so that's what we see. From the outside however, we're seeing the light that is reflected, not refracted. It is a subtle difference, but basically it doesn't bounce around and therefore we see clearly.
Analysis
Key Concepts: Light, around, blue
This explanation focuses on light, around, blue and spans 57 words across 4 sentences. The depth is typical for Space & Astronomy questions (category average: 68 words), striking a balance between accessibility and completeness.
What This Answer Covers
The explanation opens with: “The sky appears blue from inside our atmosphere because the light refracts (bounces around).” It then elaborates by presenting a contrasting perspective, ultimately building toward a complete picture across 4 connected points.
How This Compares in Space & Astronomy
Ranked #268 of 500 Space & Astronomy questions by answer depth (top 54%). This is in the concise tier — a focused explanation that prioritizes clarity over exhaustiveness. Many readers prefer this level of directness.
Frequently Asked Questions
Is there a simple explanation for why our atmosphere appear blue from earth in sunlight, but when earth is viewed from space also in sunlight, it's clear/invisible?
The sky appears blue from inside our atmosphere because the light refracts (bounces around). The blue part of the light bounces around more, so that's what we see. From the outside however, we're seeing the light that is reflected, not refracted. It…
How detailed is this explanation compared to similar Space & Astronomy questions?
This is a focused answer at 57 words, ranked #268 of 500 Space & Astronomy questions by depth. The key concepts covered are light, around, blue.
What approach does this answer take to explain our atmosphere appear blue from earth in sunlight, but when ?
The explanation uses root cause analysis and contrasting perspectives across 57 words. It is categorized under Space & Astronomy and addresses the question through 2 analytical lenses.