Charged particles, or ions, of magnesium from the cosmic dust can trigger the formation of tiny ice crystals that help form clouds, a new analysis of Mars» atmosphere suggests. (sciencenews.org)
The biggest stumbling block to preserving larger samples comes from tiny ice crystals that tend to form right around the transition point to or from a vitrified state. (aaas.org)
These ghostly Suns are actually brightly colored spots of light created when the Sun's rays are refracted by tiny ice crystals in the high clouds. (livescience.com)