Only one side of a silver crystal has the right structure to trigger ice formation, revealing how these particles help clouds ...

Silver iodide is the material of choice to make clouds release rain and snow. For decades, its remarkable ability to trigger precipitation has been used in cloud seeding to prevent hail damage and ...

A long time ago, tiny crystals formed in seafloor mud and held onto secrets that would puzzle scientists for decades. These ...

Snow is the classic of any winter precipitation and forms when temperatures are at or below freezing in the cloud and at to ...