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

NASA launched its PACE climate satellite with the Dutch aerosol instrument SPEXone onboard. A full year of observations now ...

NASA has released stunning images of mysterious colorful clouds drifting in the sky over Mars. Captured by NASA's Curiosity rover on January 17 over the course of 16 minutes, the images show ...

Researchers report that a great time to see these clouds from Gale Crater, where Curiosity is located, is the early Autumn. Videos from the rover’s MastCam show the clouds changing colors as the night ...