Social Studies: The andromeda galaxy is located approximately 2.5 million light years from earth. why is the light that reaches earth 2.5 million years old?

The andromeda galaxy is located approximately 2.5

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sparky1234

03.06.2020

1 ly is a distance, defined as the distance travelled by light in a year. hence 2.5 mn lys away means it takes 2.5mn years for light to reach earth b/c light travels a distance of 1 light year in a year

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Ответ:

Messidapro2687

15.10.2022

Social Studies

It increases the warmth of the planet and is causing global warming

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The andromeda galaxy is located approximately 2.5 million light years from earth. why is the light that reaches earth 2.5 million years old?

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