The prince says he and Meghan wanted to continue serving the Queen, but "that wasn't possible".
The shadow Brexit secretary is the first to get the support needed to officially run for leader.
Ministers are defeated three times over Brexit legislation - on citizens' rights and court rulings.
Research is at an early stage but scientists said it had huge potential for destroying cancers.
Malaysia will not become "the garbage dump of the world", says the country's environment minister.