Timelapse video has shown a volcano in the Icelandic town of Grindavik erupting against the backdrop of the Northern Lights. The volcano there is continuing to erupt - but to a lesser extent than it did in January and February when it sent lava rushing towards Grindavik. The Icelandic Met Office says it is possible that the deep magma supply and the lava outflow might have found a balance where it continues to erupt but with reduced power.