Why does the sky appear. Without it, our sky would look just like space, dark and empty. Next time you see a blue sky or a red sunset, remember that you are watching light waves dancing through the air.
When sunlight passes through the atmosphere, the fine particles in air scatter the blue colour (shorter wavelengths) more strongly than red. The scattered blue light enters our eyes and the sky appears blue. But there are no particles, hence no scattering of light in space.
Therefore, the sky appear dark to an astronaut. In what colour does the sky appear for an astronaut?The correct Answer is: Black. There is no atmosphere in space.
The light reach in space does not undergo any scattering. Thus without any:scattering no colour seen in the sky by loss. All the colours reach our eyes.
Thus. sky appears dark in space. Discover why the sky looks dark or black to an astronaut in space, unlike the blue sky on Earth.
Learn about the role of the atmosphere and light scattering. The sky appears dark (or black) to an astronaut instead of blue because there is no atmosphere containing air molecules in outer space to scatter sunlight. The dark color is nothing but the absence of the light.
The sky appears dark instead of blue to an astronaut because there is no atmosphere in the outer space that can scatter the sunlight. As the sunlight is not scattered, no scattered light reach the eyes of the astronauts the sky appears black to them. During the Apollo missions, astronauts reported that the sky seen from the lunar surface was completely black, despite the bright Sun in the sky, simply because the Moon has no atmosphere.
On Earth, at the top of high mountains like Everest, the sky also appears darker blue than at lower altitudes: there are fewer air molecules to scatter sunlight. The blue color of the sky is due to scattering of light from the atmosphere. Because there is no atmosphere in space, light does not scatter into its constituent colors, so an astronaut in space sees the sky as dark (black) rather than blue.
Thus, the sky appear to an astronaut is Dark (Black). The sky appears blue when the scattering of light takes place. As there is no atmosphere in space and hence light does not scatter into its constituent colors that is why the sky appears dark instead of blue to an astronaut in space.