Martin Wainwright reports from the count at the Haltemprice and Howden byelection in east Yorkshire, while senior political correspondent Andrew Sparrow assesses what it means for David Davis and the Tories.
As Barack Obama's presidential election campaign attempts to move on after Jesse Jackson's gaffe, Washington correspondent Suzanne Goldenberg explains how difficult it is for the Democratic candidate to capture the political centre ground after winning the nomination with an appeal to liberal voters.
Sir Alan Steer, the government's discipline tsar, has told the Guardian that parents must take more responsibility for their children. He reveals some recommendations next week that will put pressure on mothers and fathers to control their children's behaviour. Education editor Polly Curtis has the details.
New solar windows have been developed at the Massachusetts Institute of Technology that can generate electricity using the sun's rays. Researcher Jon Mapel explains how they work.
Midnight's Children was voted the best ever winner of the Booker prize. Author Salman Rushdie tells the Guardian's Stuart Jeffries how pleased he is that his novel appeals to younger readers.
