Why can electromagnetic waves travel through a vacuum?

Electromagnetic waves travel through a vacuum, Because it has an electric and a magnetic component in it.

Explanation:

The vibration that is created in an electric charge is the cause for the creation of an electromagnetic wave. The electromagnetic waves contains a magnetic and an electric component in it because of this vibration. The transportation of the energy at 3.00 x 108 m/s  speed in an empty space.

The electric and magnetic components that are present in an electromagnetic wave is called fields. There is a vibration at an angle of 90 degree by these fields with respect to the wave motion. The light speed remains unchanged.

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