The National Museum of Norway has discovered a barely visible sentence on one of the versions of the painting.
By Steve Holden
Newsbeat music reporter
By Lucy Proctor and Linda Pressly
By Alice Evans
By Jane Wakefield
Norway has become the first country in the world to see the sale of electric cars overtake sales of those powered by petrol
Odd Steinar Sørengen escaped his collapsing house, but his daughter is missing.
At least nine people are injured and houses have been buried in the Norwegian village of Gjerdrum.
By Flora Drury
By Calum Watson
BBC Scotland News website
Misha Glenny explores the history of Norway, which only became fully independent in 1905.
By Laurence Peter
An ocean-going Viking ship is being excavated south of the Norwegian capital Oslo.