One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at its closest point to Earth in its orbit, and Hall had one question on his ...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. June’s full moon ...
Blue moons, blood moons and honey moons have all worked their way into fiction and folklore, but the changing hue of our planet's biggest satellite remains rooted in science. The moon doesn't produce ...
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