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Why Do Airplanes Have Red And Green Lights? Here's What They're For
Those red and green lights play a vital role in aircraft navigation, ensuring that anyone watching from the ground, or in the sky ... the plane's right side.If both lights were the same color ...
Lunar eclipse expected to be visible in the sky
Tonight a total lunar eclipse will sweep the Western Hemisphere as the sun, earth and moon align. Called the 'Blood Moon', the reddish hue will be visible without special glasses or a telescope. NBC's ...
Smithsonian Magazine1mon
Seven Planets Will Gather in the Night Sky This Weekend. Here’s What to Expect During the Rare Alignment
Several of them will only appear low on the western horizon around twilight, but three will be bright and high in the sky after sunset ... Mars, with its distinctive red hue, will be the highest ...