Think about the light from the Sun that reaches Earth. This light is made up of electromagnetic waves, which travel through the vacuum of space to bring energy to our planet. Electromagnetic waves do not require a medium to travel through, unlike sound waves, which need air or another material to propagate. The speed of light in a vacuum is constant and is one of the fundamental constants of nature. Which statement best describes electromagnetic waves?
A) Electromagnetic waves require a medium like air or water to travel through.
B) Electromagnetic waves can travel through a vacuum and move at the speed of light.
C) Electromagnetic waves are slower than sound waves in a vacuum.
D) Electromagnetic waves do not carry energy and are only visible to the human eye.