The electromagnetic spectrum helped astronomers understand that the crab nebula contains hydrogen is gamma rays.
Electromagnetic waves are cross over waves delivered by motions of the electric and attractive fields, so light rates and should agree with the relationship of the wave speed.
Electromagnetic waves can move energy in the space too. Electromagnetic range is a scope of radiation having different recurrence.
The radiation which has more recurrence has more energy yet more modest frequency. Gamma beams have greatest recurrence where as radio waves have more modest recurrence and radiation.
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