Physics
LyndseyStaff
2021-05-04 12:41:30
What would be evidence of a galaxy moving toward earth?
ANSWERS
Rafaelito
2021-05-04 17:50:30

The evidence is that wavelengths of light coming from a galaxy that is moving towards us will be shorter than they were when they left the galaxy. This is in accordance with the principle that when the source of light is moving towards us, the wavelength that appears to us is shorter than it should be and vice versa for source of light moving away from us. 

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