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By peeling back layers on an EHT image of the black hole at the centre of the M87 galaxy, scientists have seen photons flung around a black hole

Using new computational algorithms, scientists have measured a sharp ring of light predicted to originate from photons whipping around the back of a supermassive black hole.

The 2019 supermassive blackhole is under investigation through an image remaster for more insights. (Photo : Event Horizon Telescope collaboration et al.

Using new computational algorithms, scientists have measured a sharp ring of light predicted to originate from photons whipping around the back of a supermassiv

老年人的“新派”生活方式推动养老地产“风口”待启 2021年6月30日，上海——最新发布的第七次人口普查数据显示，2020年我国65岁及以上人口的占比较2010年上升4.63个百分点，达到13.5%。由于2020年我国育龄妇女总和生育率为1.3，已经显著低于世代更替的水平。根据中国发展研究基金会的报告，预计到2025年“十四五”规划完成时，我国65岁及以上的老年人将超过2.1亿，占总人口数的约15%；到2035年和2050年时，中国65岁及以上的老年人将达到3.1亿和接近3.8...