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Structure and properties

Structure and properties

Cubic ice observed in pure form for the first time

29 Apr 2023 Isabelle Dumé
Ice-crystal halo: haloes such as the one seen here (photographed in Quebec City) are produced when light from the Sun or Moon interacts with ice crystals suspended in the atmosphere. Scheiner’s halo is an extremely rare version of this phenomenon thought to arise from the cubic form of ice. (Courtesy: CC BY-SA 4.0/Marc-Lautenbacher)
An unusual phase of ice that may be responsible for a spectacular atmospheric effect called a Schein

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Isabelle Dumé is a contributing editor to Physics World
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