The world's athletes sailed up the River Seine for the opening ceremony of the Paris Olympics. The flotilla was peppered with performances of music and entertainment including Lady Gaga, dancers of the Moulin Rouge, and French-Malian singer Aya Nakamura, in a tribute to the French capital's cultural history. The Olympic flame was a cauldron shaped like a hot air balloon that rose high above the Parisian sky.

In the US, Kamala Harris is reaching the end of week one as the Democratic presumptive nominee in the Presidential election. We speak to a pollster about her chances of success.

And what must it be like to experience scuba diving without sight? A visually impaired diver describes the orchestra of ocean sounds she hears every time she plunges below.