Why does the sky appear dark (or black) to an astronaut instead of blue?
Download our app for free and get started
To an astronaut, the sky looks dark and black instead of blue because there is no atmosphere containing air in the outer space to scatter sunlight. So, there is no scattered light to reach our eyes in outer space, therefore the sky looks dark and black there.
Download our appand get started for free
Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*
Similar Questions
- 1View SolutionWhen a beam of white light is passed through a prism, it splits to form lights of seven colours. Is it possible to recombine the lights of seven colours to obtain the white light again? Explain your answer.
- 2View SolutionExplain why, if we look at objects through the hot air over a fire, the objects appear to be moving (or shaking) slightly.
- 3View SolutionHow could you show that the colours of the spectrum combine to give white light?
- 4View SolutionNocturnal animals (animals which sleep during the day and come out at night) tend to have wide pupils and lot of rods in their retinas. Suggest reasons for this.
- 5View SolutionDraw a diagram to show the refraction of light through a glass prism. On this diagram, mark:
- Incident ray.
- Emergent ray, and.
- Angle of deviation.
- 6View SolutionGive the relationship between the wavelength of light and its angle of deviation, when it is passed through a prism.
- 7View SolutionDescribe how you could demonstrate that white light is composed of a number of colours.
- 8View SolutionExplain why the planets do not twinkle but the stars twinkle.
- 9View SolutionIn a certain murder investigation, it was important to discover whether the victim was long-sighted or short-sighted. How could a detective decide by examining his spectacles?
- 10View SolutionWhen we place a glass prism in the path of a narrow beam of white light a spectrum is obtained. What happens when a second identical prism is placed in an inverted position with respect to the first prism? Draw a labelled ray diagram to illustrate it.