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还在抱怨天气冷吗?你应该庆幸,没有生活在“回力棒星云”里——天文学家认为它是宇宙中“最冷”的地方。回力棒星云距离地球约5000光年,位于半人马座中,那里的温度约零下272摄氏度,仅比绝对零度(原子绝对静止的温度,为零下273.15摄氏度)高1摄氏度多。天文学家认为从中心恒星吹出的时速50万公里、超强超冷的气体造就了这个星云。据推算这颗即将死亡的恒星正在迅速膨胀,目前每年会损失千分之一个太阳质量。过快的膨胀速度和过高的质量损失率,是造成那里温度如此之低的主因。
Are you still complaining about the cold weather? You should be fortunate that you are not living in the “Bat Bar Nebula” - astronomers think it is the “coldest” place in the universe. The Batman Nebula is about 5,000 light-years away from Earth and is located in Centaurus where the temperature is about minus 272 degrees Celsius, which is only one degree Celsius higher than the absolute zero (the absolute atomic temperature of the atom is minus 273.15 degrees Celsius). Astronomers believe that the galaxy, which has been blown out of the central star at a speed of 500,000 kilometers per hour, is a super-cold gas. It is estimated that the star, which is about to die, is rapidly expanding and currently loses one thousandth of the sun’s mass every year. The rapid expansion rate and excessive mass loss rate are the main causes of the temperature being so low there.