Extreme cooling near Arsia Mons may let water vapor form ice particles directly, helping explain Mars’s striking morning ...

A study published in Nature Geoscience suggests that the cloud forms through a process called homogeneous ice nucleation.

The physical process likely behind this cloud's formation has never been observed in a planetary atmosphere before.

Scientists using the European Space Agency's Mars Express, in combination with a state-of-the-art meteorological model of the ...

The Arsia Mons Elongated Cloud as seen by Mars Express. Credit: ESA. Every morning, for several months of the Martian year, ...

Scientists have finally solved one of Mars's most perplexing mysteries: the puzzle of an 'impossible' giant cloud.

It is widely accepted that water vapor forms clouds by heterogeneous nucleation (condensation on pre-existing dry nuclei).