How does ascending to a high altitude affect the perceived color of the daytime sky?
Answer
The sky appears a paler, lighter shade of blue due to decreased air density
At high altitudes, air density decreases, meaning there are fewer atmospheric particles to scatter blue light into the observer's line of sight, resulting in a paler shade of blue.

#Videos
The Sky Is NOT Blue. Eye doctor reveals the truth behind ... - YouTube
Related Questions
What constitutes sunlight before it enters Earth's atmosphere?What physical phenomenon explains why the sky is blue?How does the effectiveness of light scattering depend on wavelength in the atmosphere?What role does human biology play in perceiving the sky as blue instead of violet?Why do clouds typically appear white or gray?What causes the dramatic orange and red colors observed during sunsets?What color does the sky appear to an astronaut floating just above Earth's atmosphere?What are the primary gas molecules making up the air that cause Rayleigh scattering?How does ascending to a high altitude affect the perceived color of the daytime sky?During sunset, what happens to the short-wavelength light relative to the observer's direct line of sight to the sun?