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.
MSN Entertainment's Lucy Mapstone chats to stars of Marvel's Avengers Assemble, including Robert Downey Junior, Chris Hemsworth, Tom Hiddleston, and Mark Ruffalo.
UK Release Date: April 26 2012