Scientists detected the gravitational waves after a pair of unusual black holes collided.
Japan and China are continuing to exchange angry words over their competing claims to the Senkaku/Diaoyu Islands, an uninhabited group of islands in the East China Sea.
The BBC’s Rupert Wingfield-Hayes visited the islands that are the focus of the tension, and found a growing wave of nationalism in Japan.
Robin Young and Jeremy Hobson are hitting the road. Our Tumblr brings you behind the scenes of our election coverage.