What is the Fastest Thing on Earth? Discover the Speed of Light

Learn about the fastest thing on Earth: light traveling at 299,792 kilometers per second.

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The fastest thing on Earth is light. Light travels at approximately 299,792 kilometers per second (about 186,282 miles per second) in a vacuum. This incredible speed allows light to travel from the Earth to the Moon in just about 1.3 seconds.

FAQs & Answers

  1. What is the speed of light? The speed of light is approximately 299,792 kilometers per second (186,282 miles per second) in a vacuum.
  2. What travels faster than light? Nothing in the known universe can travel faster than light; it is the ultimate speed limit according to physics.
  3. How long does it take for light to travel to the Moon? Light takes about 1.3 seconds to travel from Earth to the Moon.
  4. Are there any objects that can move as fast as light? Currently, no material object can reach or exceed the speed of light, according to Einstein's theory of relativity.