What travels at the speed of light and reaches Earth in about eight minutes from the Sun?

Answer

A solar flare (intense burst of radiation)

A solar flare consists of intense radiation, specifically mentioned as X-rays and ultraviolet light, which travels at the speed of light and reaches Earth in approximately eight minutes.

What travels at the speed of light and reaches Earth in about eight minutes from the Sun?
sunhumanSleepradiationsolar flare