In pics: Shanghai, example of China's tremendous changes since reform and opening-up

Shanghai Astronomical Observatory (SAO) holds a press conference to release the first-ever image of a supermassive black hole at the heart of the distant galaxy M87, in east China's Shanghai, April 10, 2019. As the financial center of China, Shanghai is a good example of the tremendous changes that have taken place in China since the reform and opening-up. (Xinhua/Fang Zhe)