URUMQI, July 23 (Xinhua) -- Urumqi, capital of northwest China's Xinjiang Uygur Autonomous Region, recorded 50.57 million tourist visits in the first half of 2025, making it China's third most popular ...

曾因震耳欲聋的音爆而被限制在海洋上空的超音速客机，如今正迎来重返大陆上空的曙光。美国国家航空航天局（NASA）近日宣布，其最新的X-59试验飞机已成功完成首次地面滑行测试，这是该架旨在将“音爆”（sonic ...