Astronomy
Physics

Electromagnetic waves can transfer energy without a?

Answer

Wiki User
07/12/2009

Electromagnetic waves can carry energy from place to place without a medium.

An example is the heat and light from the sun, which reaches earth through 93 million miles of the vacuum of space.

Another example ... so obvious that it might not occur to us ... is the fact that we can see the light of stars that has spent thousands of years crossing the vacuum of space on its way to our eyes.