The aurora borealis (or northern lights) is a spectacular natural phenomenon which can occasionally be seen in the night sky over Britain. Once seen, it is never forgotten. AuroraWatch UK is a free service offering alerts when the aurora might be visible from the UK. It is run by scientists in the Space and Planetary Physics group at Lancaster University’s Department of Physics. The AuroraWatch UK app for iOS is written, run and maintained by Neil Morton at Progress Concepts Limited, in association with AuroraWatch UK, giving you the data at your fingertips on your iPhone, iPad or Apple Watch, and delivering free real-time alerts whenever aurora is likely to be visible from the UK. Alerts are configurable within the app to different levels, so you will know when to look out for aurora wherever you are. * Receive realtime alerts direct to your device when sighting is likely. * Monitor the UK's geomagnetic activity in real-time. * See how likely it is that you may see the aurora. * View last 24 hours chart. * View map with current aurora & cloud cover. * View Shetland Cliff Cam to see any aurora. * Today widget allows quick access to current activity. * Watch app allows quick access to current activity.