Microsoft buys Minecraft maker for $2.5bn

Available for over a year

So how will it make money from the popular computer game? World environmental campaigners ask philanthropists to step in to avert climate change. We hear from one of the campaign organisers. As Google launches its $100 Android One handset, we explore the battle for the smartphone market in India. Can it see off the competition? Also in the programme, we examine the possible economic gains of the European Space Agency's upcoming attempt to land a probe on a comet for the first time ever. And our regular commentator Lucy Kellaway gives us her view on perfecting a sales pitch.