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  • How Long Does It Take for Sunlight to Reach Earth?
    The light we see from the Sun is about 8 minutes and 20 seconds old.

    Here's why:

    * Speed of light: Light travels at an incredible speed of approximately 299,792 kilometers per second (186,282 miles per second).

    * Distance to the Sun: The Sun is about 149.6 million kilometers (93 million miles) away from Earth.

    * Time calculation: Dividing the distance to the Sun by the speed of light gives us the time it takes for light to travel from the Sun to Earth:

    * 149.6 million km / 299,792 km/s = 499 seconds

    * 499 seconds / 60 seconds/minute = 8.32 minutes

    So, the light we see from the Sun left the Sun's surface about 8 minutes and 20 seconds ago.

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