The starship Cosmographer receives a distress signal. Zorp, the communication officer, announces it is coming from an ally’s damaged ship four light-years away. How might Zorp know the distance to the source of the signal? Should the crew just drop everything and rush to the aid of the ship in distress? Why or why not? What would have to be different from our current understanding of science for the Cosmographer to get to the damaged ship on time to save its crew?

(75°f − 32) × 5/9 = 23.889°c

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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