Light pillars were recently observed over Dudinka, formed by light reflecting off tiny, horizontally oriented hexagonal ice crystals in very cold, calm, clear conditions. The observation was made at about −28°C.

Anchorage-based photographer saw something wild — a sudden, bright light on the northern horizon that quickly started to take on a spiral shape as it drew nearer. The spiral “appears to be rocket engine exhaust from a SpaceX Transporter-7 mission that launched on the Falcon 9 about three hours earlier in California.”