Scientists Reveal How Long Sunlight Takes to Reach Earth
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How Long Sunlight Takes to Reach Earth Across Space
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The brilliant light warming our planet is immediate to us, but to reach them it has a cosmic journey to undertake across the void of space. By working out the great distance between the world and the Sun and the fixed speed of light, scientists have determined this exact travel time. This solar transit gives a perspective on the size of our Solar system and also looks at the Sun's Light that illuminates the Earth.