There will be no Labour government if it involves a coalition or a deal with SNP, Ed Miliband says during a special election edition of Question Time.
After a decade in space and four years in orbit, Nasa's Messenger spacecraft reaches the end of its mission and crashes into the surface of Mercury.
Ed Miliband has been questioned over Labour's record on spending in the final televised leaders event before the election.
David Cameron has said he will fight with everything he has got to avoid having to go into coalition and make policy compromises in a "dark room with Nick Clegg or someone".
Aid agencies warn of a severe lack of fuel and food in Yemen, with one charity saying it has had to withdraw from one region.
Floyd Mayweather's father says Manny Pacquiao has never recovered from being knocked out by Juan Manuel Marquez in 2013.
David Cameron has been questioned over the Conservatives plans for benefits cuts in the final televised leaders event before the election.
One in six species on the planet could face extinction due to the effects of climate change if nothing is done to reduce emissions, according to analysis.
Annie Haynes is a 66-year-old retired dental nurse and water sports enthusiast who lives in north Cornwall.
Watch Leicester manager Nigel Pearson and BBC Sport's Pat Murphy exchange strong views at a news conference.
Former Olympic champion Chris Boardman believes Alex Dowsett can break the hour record in Manchester on Saturday.
Ex-Army chief Lord Bramall has been questioned by police investigating allegations of historical child abuse, the BBC understands.
The German government blocks a plan by Commerzbank to increase bonuses for its top performers to 200% of their basic salary.
The BBC's Clive Myrie is with an international search team in Kathmandu as a woman called Krishna is pulled alive from the rubble of a building destroyed in the Nepal earthquake.
Apple acknowledges some of the functions on its new smartwatch may not work properly when it is worn over tattoos.
The Queen presents new colours to the Welsh Guards during a ceremony at Windsor Castle as the regiment celebrates its centenary year.
The Conservatives rejected claims that they had planned to cut welfare while in government and the leaders look ahead to Question Time.
The pressure will be on the referee at the lucrative Mayweather v Pacquiao fight - BBC presenter Matthew Amroliwala finds out how hard it is to adjudicate.
Residents of a Philippine island are asked to switch appliances off on Sunday to conserve power for boxer Manny Pacquiao's big fight.
Bernie Sanders, a US senator and self-proclaimed socialist, says he is seeking the Democratic nomination for the presidency.