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The iridescent cloud reveals new clues about ice formation in the Martian atmosphere (no little green men, sorry).

NASA’s Curiosity rover captured stunning images of Martian twilight clouds, revealing iridescent dry ice formations on Mars.

Curiosity, a set of NASA 's robotic "eyes" on the Red Planet, recorded 16 minutes of so-called noctilucent clouds flying ...

The Sun sets differently on Mars. Part of that is due to its distance from the star (an average of 142 million miles versus ...

A recent video created from images captured by Curiosity shows clouds tinted red and green flowing though the sky over Mars.

This lovely evening sky was photographed over a Sacramento neighborhood in early January. Thank you, Claus Weisemann, for ...

RCW 38 lies approximately 5,500 light-years away in the constellation Vela. Unlike many star clusters that appear as simple ...

Cosmic forensic experts are reconstructing the magnetic field around an infant star from the planet-forming disk of gas and ...

The Universe is full of dust, and a striking new image from the Hubble Space Telescope highlights just how important it is.

Winter may seem dreary, but its sunsets are often vibrant. Discover the stunning array of colors that can light up the sky ...

The beauty of Uluwatu sunset in Bali places it at number 11 out of 25 best places to watch the sunset, surpassing the Burj ...