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

While the sight is fascinating, scientists are still trying to understand why carbon dioxide ice clouds only form in specific ...

Twilight clouds were first observed on Mars by NASA's Pathfinder mission in 1997. This rare atmospheric phenomenon has not ...

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

Known as Noctilucent or night-shining clouds, twilight clouds are typically seen on Earth during the summer, but this time, ...