On a chilly Friday morning nature tantalized D.C., spreading clouds across sky, but now and then permitting glimpses of a total lunar eclipse. The moon’s maneuvering seemed suited to March 14, which ...

Sun rays fall through clouds in the outskirts of Frankfurt, Germany, Wednesday, Aug. 26, 2020. (AP Photo/Michael Probst) Sometimes, it's not the shape of a cloud that can create a breathtaking ...

For the fourth year in a row, iridescent clouds of frozen CO2 are lighting the Martian sky. The clouds appear in the same ...

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While sunsets on Mars are uniquely moody, NASA 's Curiosity rover has captured a stunning image of a martian sunset, featuring light rays that illuminated a bank of clouds as the sun set over the ...