Rare no-shadow phenomenon returns to Zhaoqing's Xinghu Wetland on Summer Solstice
June 21 marks the Summer Solstice, and the rare celestial phenomenon known as the "upright pole with no shadow" returned to Taiji Cave in Zhaoqing's Xinghu National Wetland Park (肇庆星湖国家湿地公园太极洞), drawing astronomy enthusiasts, photographers, and visitors.
2026-06-23 11:13:01