As the Curiosity rover explores its way around Mars, it isn’t only looking ... first time I saw those iridescent clouds and was sure at first it was some color artifact,” said researcher ...

Iridescent clouds were first seen on Mars by NASA’s Pathfinder mission ... he actually thought it was a mistake — some kind of color artifact appearing in the images. Now scientists can ...

For the fourth year in a row, iridescent clouds of frozen CO2 are lighting the Martian sky. The clouds appear in the same place, at the same time of year.

The images, which were captured on Jan. 17 by one of two cameras onboard Curiosity, feature "noctilucent" or twilight clouds — clouds captured wafting so high up in the Mars sky that they are ...

A new study claims that a mineral found in Mars' dust called ferrihydrite, which forms in the presence of cool water, is likely what gives the planet its reddish hue.

A recent study of data from multiple missions shows the Red Planet may get its name from an iron mineral that formed when ...

NASA observes carbon dioxide and water-ice clouds on Mars The primary ingredients of ... and thinking at first that it was some sort of color artifact," Mark Lemmon, an atmospheric scientist ...

(Photo/NASA/JPL) 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 ...

In the mid- and upper-latitudes on Earth, during the early evening hours, thin and wispy clouds can sometimes be observed in the upper atmosphere. These clouds have an ethereal feel and consist of ice ...