BEIJING, Feb. 23 (Xinhua) -- The total number of inter-regional passenger trips across China during the 40-day Spring Festival travel rush, also known as chunyun, reached a record of 9.02 billion, ...

近日，天文学家们宣布发现了一个震撼宇宙学界的巨型结构——Quipu，其横跨约13亿光年，成为目前 known 宇宙中最大规模的单一结构。这一发现不仅刷新了人类对宇宙结构的认知，也为探索宇宙演化提供了新的视角。

BEIJING, Feb. 22 (Xinhua) -- The total number of inter-regional passenger trips across China during the 40-day Spring Festival travel rush, also known as chunyun, is estimated to reach 9.03 billion, ...