Our weekly news round-up: A large Harvard University survey shows how to increase life expectancy by a decade or more; MarCO cubesats piggy back to Mars; China has amazing drone swarms with military applications; Somnox: a smart cushion for insomniacs; A futuristic solar power generating highway in Jinan; Trackable suitcases banned from flights; Telegram instant messaging service outlawed in Russia and Iran; Facebook trials a ‘dislike’ button, while launching its own dating service.