What fundamental difference causes the daytime sky to be blue but space to be black?
Answer
The presence or absence of air
The blue color results from sunlight interacting with the gas molecules in Earth's atmosphere, while space appears black because it is a vacuum lacking any medium to scatter sunlight toward an observer’s eye.
#Videos
Why Does The Sky Change From Blue To Black? | Earth Science
Related Questions
What fundamental difference causes the daytime sky to be blue but space to be black?What is sunlight actually composed of when considering the visible spectrum?Which colors of light correspond to the shortest wavelengths in the visible spectrum?What is the specific light redirection process caused by gas molecules smaller than visible light wavelengths?According to Rayleigh scattering principles, how is the intensity of scattered light related to wavelength (λ)?Why does the Sun appear slightly yellow when viewed through the atmosphere?What two biological/physical reasons explain why the sky appears blue rather than violet?When atmospheric particles are larger than the wavelength of light, such as water droplets, what scattering process occurs?What color does light scattered by Mie scattering typically appear as?Why do sunsets display intense yellows, oranges, and reds?