Iceland volcano: The latest spectacular pictures of the volcanic eruption

                                                                                              Lightning streaks across the sky as lava flows from a volcano in Eyjafjallajokul

                                                                                              It is not clear why bolts of lightning are sometimes seen within erupting volcanoes...

...One theory is that that the spewing magma bubbles or particles of volcanic ash are themselves electrically charged, and by their motion create separately charged areas...                                                                                              

                                                                                              ...Another theory is that lightning may be caused by charge-inducing collisions in volcanic dust

Several photographers have captured this phenomenon at the Icelandic volcano                                                                                              

The ash plume of the Eyjafjallajokull volcano streams southwards over the Northern Atlantic Ocean in this satellite photograph...

                                                                                              ...A close-up of the erupting volcano and the ash plume from space

                                                                                              A woman stands near a waterfall that has been dirtied by ash that has accumulated from the ash plume of an erupting volcano near Eyjafjallajokull, Iceland

                                                                                              A photograph taken on 25 March shows the Aurora Borealis aka Northern Lights behind the volcanic eruption in Iceland at Fimmvorduhals

This photo, taken on 25 March, shows a woman watching the eruption and the Aurora Borealis                                                                                              

                                                                                              Lava fountains spurting during volcano eruption in Iceland at Fimmvorduhals. Picture taken on 25 March

Horses are herded to safety away from volcanic ash clouds near Eyjafjallajokull, Iceland

Tourist and scientists photograph the volcanic eruption in Fimmvorduhals                                                                                              

                                                                                             

                                                                                              Photographer Omar Oskarsson and journalist Runar Palmason join volcanic scientists Sigurdur Gislason and Helgi Alfredsson as they collect samples from the ash to send to labs to analyse the contents

                                                                                             

                                                                                              A film crew working for National Geographic publication set up their equipment on southern Iceland's Eyjafjallajokull glacier after landing on the glacier, close to the volcanic eruption

                                                                                             

                                                                                             

                                                                                             

                                                                                             

                                                                                             

                                                                                             

Wow The end