The Northern Lights were clear in the skies across Scotland again on Saturday night.
Readers took some great photos of the spectacle which was visible because of clear skies - from Greenock, to Stirlingshire and Edinburgh.
An aurora is a natural light display in Earth's upper atmosphere caused by charged particles from the Sun colliding with atoms in the atmosphere. These collisions excite oxygen and nitrogen, which then emit light of different colours such as green, red, and purple.
See our photo gallery below for some fantastic photos of this incredible spectacle.
5. Nature's light show
Another brilliant photo of the Northern Lights taken on Saturday night. | Susan Laing
6. Looking north
Another great reader's photo of the Northern Lights on Saturday night, taken in Midlothian. | Heather Anderson
7. Stunning
This stunning photo of the Northern Lights was taken on Saturday night in Armadale. | Lisa Archibald
8. Rebecca Heibein, Raploch
Rebecca Heibein from Raploch took this colourful picture of the Northern Lights over Stirling on Saturday | Rebecca Heibein