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It takes about 500 seconds for sunlight to reach the Earth. This means that when the sun rises, the light that reaches the Earth is already 8 minutes and 20 seconds old. More »

www.reference.com Science Astronomy Our Sun

Light from the Sun travels 93 million miles, at a speed of 186,000 miles per second, to get to Earth in about 8 minutes and 20 seconds. People on Earth see the Sun as it was 8 minutes and 20 seconds ago. More »

www.reference.com Science Measurements

It takes light from the moon's surface approximately 1.3 seconds to reach the Earth. This is also the amount of time it takes for sound to travel from the Earth to the moon. That means that communication from the Earth t... More »

www.reference.com Science Astronomy Our Moon
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The sun benefits the Earth in several ways, including giving the light animals see with or the energy needed to produce artificial light, the heat that makes life on Earth possible, and energy for plants to make food thr... More »

www.reference.com Science Astronomy Our Sun

Direct sunlight reaches the Earth's surface when there is no cloud cover between the sun and the Earth, while cloud cover causes indirect sunlight to reach the surface. In gardening, sunlight falling directly on the plan... More »

www.reference.com Science Astronomy Our Sun

Without the sun, all life on Earth except for deep sea microbes would die. Earth would cool to minus 100 degrees Fahrenheit within one year, plants would be unable to photosynthesize and gravity would no longer keep the ... More »

www.reference.com Science Astronomy Our Sun

By every measure of size and mass, the Sun is much larger than the Earth. The Sun has a diameter of nearly 1.4 million kilometers and a mass 330,000 times that of the Earth. The Sun represents over 99 percent of all the ... More »

www.reference.com Science Astronomy Our Sun