1490 Ch’ing-yang Meteor Shower
The Ch’ing-yang event of 1490 (1490 年 慶陽 事件), also known as the Chi-ing-yang meteor shower (Qingyang, 陽 流星 雨), was a presumed meteor shower … Read more
World’s Largest Radio Telescope put into use
Five-hundred-meter Aperture Spherical Telescope (FAST), nicknamed Tianyan (Eye of Heaven) is the world’s largest radio telescope, measuring 500 meters in diameter. FAST was completed and … Read more