You XiaoyingFreelance journalistYou Xiaoying is a freelance journalist based in London. She writes and reports about climate change and the clean energy transition. LATEST ARTICLES1X-ray telescope finds something unexpected with the 'heartbeat black hole'2Scientists may have found a powerful new space object: 'It doesn't fit comfortably into any known category'3Pallas's cat: One of the world's oldest felines that stands on its bushy tail to keep its paws warm4Meet Robot Drummer: Scientists train an AI to drum like Linkin Park and AC/DC — but it sounds like it has plenty of practice to do5Why do caffeine withdrawal headaches hurt so much?