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

Venus, the Roman goddess of love and beauty, will gain "maximum brilliance" at night on Valentine's Day across Kentucky skies ...

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

February is the best month to see Venus. But clouds, storms might make it hard to spot in Mississippi on Valentine's Day. How ...

It might be hard spotting Venus on Valentine's Day in Indiana because of cloudy weather. February, however, is still the best month to see it.

The zodiacal light shines in the evening as the Moon reaches Last Quarter and skims past Spica and Antares in the sky this ...

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

At the surface, Mars is a desolate, barren world with a rocky landscape, massive dust storms and extreme temperature swings. However, a rover recently captured a splash of color in the sky as rare ...

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

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

Contrails conjure a sense of something overwhelming and ineffable, as terrifying as it is beautiful.

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