"I'll always remember the first time I saw those iridescent clouds and was sure at first it was some color artifact." ...

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

While taking a stroll, Acadiana Advocate photographer Leslie Westbrook spotted the iridescent, circular ring of light around the sun and took a photo. But what is it, and what does it mean?

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