Sunlight, which is composed of photons, takes approximately 8 minutes and 20 seconds to travel from the Sun to the Earth. This distance is known as one astronomical unit (AU), which is about 93 million miles or 150 million kilometers.
Now, let's calculate how far sunlight can travel in one second if its speed is close to the speed of light (which is approximately 299,792,458 meters per second).
Distance traveled in one second = Speed of light (meters per second) × Time (seconds)
Distance traveled in one second ≈ 299,792,458 meters per second × 1 second
Distance traveled in one second ≈ 299,792,458 meters
So, sunlight can travel approximately 299,792,458 meters, or about 299,792 kilometers, in one second if its speed is close to the speed of light. This is an enormous distance, equivalent to almost 186,282 miles.