Which part of the electromagnetic spectrum helped astronomers understand that the Crab Nebula contains hydrogen ?

asked Apr 6, 2021 14.0k views

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7 votes

Answer: visible lighttt

Step-by-step explanation:

Mike Duncan answered Apr 8, 2021

3.8k points

4 votes

Answer: Visible light

Explanation: I got this wrong for you so be grateful

Kevmar answered Apr 11, 2021

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