A Chinese imperial astronomer made routine observations in the eastern sky early one morning in 1054.His primary job was to revise the calendar based on the movements of the sun,moon,and other planets so as to guide f...A Chinese imperial astronomer made routine observations in the eastern sky early one morning in 1054.His primary job was to revise the calendar based on the movements of the sun,moon,and other planets so as to guide farming across the country.He was looking at a previously charted area when an anomaly caught his eye—a shining展开更多
文摘A Chinese imperial astronomer made routine observations in the eastern sky early one morning in 1054.His primary job was to revise the calendar based on the movements of the sun,moon,and other planets so as to guide farming across the country.He was looking at a previously charted area when an anomaly caught his eye—a shining
