A | 根据芬兰达勒姆大学和赫尔辛基大学的一项研究，大麦哲伦星云可能在20亿年内与银河系相撞。目前，这项研究已经发表在国际顶级天文杂志《皇家天文学会月报》上。大麦哲伦星云距离银河系约163000光年。天文学家先前认为大麦哲伦星云将绕银河系运行数十亿年，甚至可能逃离银河系。
B | (ECNS) -- The "Yangtze Journey Aurora," a new energy hybrid cruise ship, made its maiden voyage from Yichang Port in central China's Hubei Province on Wednesday, entering service on the classic Yichang–Chongqing route along the Yangtze River. The vessel is among China's first interprovincial cruise ships to feature an extended-range hybrid power system, boasting battery capacities of 2,580 kWh and a cruising range of 1,500 kilometers. Equipped with DC inverter air-conditioning and secondary energy recovery technology, the ship's air-conditioning system reduces energy consumption by 20%. It also features vibration- and noise-reduction systems as well as environmentally friendly shipbuilding materials, providing passengers with a quieter and lower-carbon cruising experience. New energy cruises have become one of Yichang's signature tourist attractions. In the first half of 2026, cruise routes in the city welcomed more than 3 million passenger trips. By promoting the operation of new energy vessels, the Yangtze River's Three Gorges region is reducing carbon emissions from waterborne tourism and supporting the green transformation of the Yangtze shipping industry. (By Gong Weiwei) 
。研究人员发现，大麦哲伦星云的质量远远超过预期，其轨道能量会由于动态摩擦力而迅速衰减，可能在20亿年内与银河系碰撞并合。模拟结果表明，撞击将给银河系带来毁灭性的灾难。
C | 银河系中冬眠的黑洞将被激活，迅速扩大到10倍，质量增加8倍。活跃的黑洞将释放大量高能辐射流。如果喷气式飞机产生的伽马射线到达地球，它将破坏臭氧层并导致大量的生物灭绝。然而，研究人员也发现，太阳系很可能会在撞击中被抛出银河系，抛入一个更大的空间，因此地球将得以幸免。
D | 先前的天文学家预测仙女座星系将在80亿年内撞击银河系，这项研究将银河系与其他星系之间可能的碰撞时间提前了60亿年。
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