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

Curiosity rover images show iridescent clouds on Mars, helping scientists explore atmospheric and climate dynamics.

Not long ago, Elon Musk was a darling of American progressives. Scroll to begin A visionary bringing electric cars to the ...

Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

A laser-engraved, intricately decorated dial with an unusual arrangement proves there is more than one type of ...

According to Robin Scagell, vice-president of the Society for Popular Astronomy, this planetary gathering is among the best ...

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

"An epic exploration of possibilities. What If is a Webby Award-winning science web series that takes you on a journey through hypothetical worlds and possibilities, some in distant corners of the ...

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

Scientists say the threat of a newly discovered asteroid has risen slightly in the past few weeks as the world's telescopes ...

"Mercury and especially Saturn will not be easy to find even if the weather is clear. Mercury sets at 7.15pm on February 28 ...

A supposed square structure spotted on Mars sparked speculation about alien archeological sites on the red planet. It's a fun ...