article: The colourful phenomenon was visible in Scotland and Northern Ireland, but was also spotted as far south as Anglesey in Wales and Staffordshire in England. Aurora Borealis occurs when electrically-charged particles from the sun enter the earth's atmosphere. Many people took to social media to share photographs of the dramatic show. Forecasters had predicted a solar storm and good conditions for Aurora Borealis, and sightings of green, pink, purple, red and yellow lights were reported for several hours from about 20:00 GMT. Gavin Chambers, an RSPB warden, tweeted pictures of vivid green in the sky over Lake Vyrnwy in Powys, Wales, saying: "Well worth getting back out of bed for!!" Donna Butcher tweeted: "Just been watching an amazing display of Aurora from Staveley, Cumbria. Shafts of light streaming directly towards Polaris." You can email your pictures and video to yourpics@bbc.co.uk, and find out more about the Northern Lights here.