The thing in our Yellow Lightnings on Orange Background cursor is a sudden electrostatic discharge during an electrical storm that can travel up to 220,000 miles per hour. By the way, thunder is the sound that lightning makes as it travels through the air, causing it to expand rapidly and then contract. Lightning strikes the Earth's surface around 100 times per second or approximately 8 million times per day. It can strike the same place twice, and tall objects like the Empire State Building and Eiffel Tower are frequently struck by lightning.