Journey through quail embryo wins Nikon science video prize
Sequential images of a ten day old quail embryo have won Portuguese biologist, Gabriel G. Martins first prize in this year's Nikon Small World in Motion Photomicrography Competition. The entry was one of hundreds submitted for the contest, which aims to highlight the latest techniques of scientific imaging.
US troops arrive in Poland as the interim government in Ukraine resumes an offensive against pro-Russia separatists in the east of the country. Ivor Bennett reports on the breakdown of an Easter truce agreement, and how the threat of more sanctions from the US could hit markets.
Imagine you're sitting on the tube, minding you're own business when suddenly - the doors open and Rihanna gets on.
Just a dream?
Not for commuters in London when the 23-year-old hopped on the Jubilee underground line to get to the 02 Arena for her concert.
Rhi Rhi used her own Oyster travel card to take the journey when she joined the carriage at North Greenwich station.
The Man Down singer then hopped off the train to perform a killer show.