Bjargmundsson's work of art is understandably a contender in the Astronomy Photographer of the Year contest, held at the Royal Observatory Greenwich (in London).

Photographer Ingólfur Bjargmundsson lay in wait in the frozen 1360-metre-long lava cave to capture this image of the aurora borealis at its peak through one of the cave’s natural skylights.

The image was captured by photographer Ingólfur Bjargmundsson, from within the 1360-metre-long lava cave. The people in shot aren’t standing on rock: those are actually snow pedestals, that ...