IrieBoy4945 IrieBoy4945
  • 19-04-2022
  • Physics
contestada

If we say that a galaxy has a lookback time of 1 billion years, we mean that _________.

Respuesta :

mnblego4 mnblego4
  • 21-04-2022

Answer:

its light traveled through space for 1 billion years to reach us

Explanation:

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