Light Pillars: How Ice Crystals Turn Streetlights into Columns of Light
On a bitterly cold night, the lights of a town can suddenly send tall columns of colour straight up into the sky. Blue, yellow and white sh...
atmospheric optics
Crown Flash Video from Greenwood, Indiana: Dancing Light Above a Storm
In June 2015 a cyclist in Greenwood, Indiana, noticed a strange light above an approaching thunderstorm, pulled over and started filming. T...
Sun Halos over Finland: Pauli Hänninen’s Ice-Halo Display in Lapland
On a frozen, foggy morning in October 2013, Pauli Hänninen stepped outside in Sirkka, the village at the foot of Levi in Finnish Lapland, an...
Light Pillars over Winter Towns: How Ice Crystals Make Columns of Light
On the coldest, stillest winter nights, columns of coloured light can appear to rise from a town straight into the sky. These are light pill...