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A recently discovered asteroid, named 2024 YR4, has on average a 2% chance of hitting Earth in 2032.
最近发现的一颗名为“2024 YR4”的小行星，有2%的概率将在2032年撞上地球。
Not much is known about 2024 YR4, but the asteroid is estimated to be 131 to 295 feet (40 to 90 meters) wide, a "size range comparable to that of a large building."
人们对2024 YR4知之甚少，但据估计，这颗小行星的宽度为131至295英尺（40至90米），“大小范围与一座大型建筑物相当”。
While those odds of an impact are slim, astronomers are closely tracking the space rock to uncover more details.
虽然撞击的可能性很小，但天文学家正在密切跟踪，以发现更多细节。
That's not even close to the size of the "planet-killer" asteroid that slammed into Earth 66 million years ago and led to the extinction of dinosaurs. That one was estimated to be about 6.2 miles (10 kilometers) in diameter and marked the last known large asteroid to hit our world. Planet killer asteroids are space rocks that are 1 kilometer across or larger and could have a devastating effect on life.
“2024 YR4”大小与行星“杀手级别”的小行星相差甚远。“行星杀手”小行星是指直径为1公里或更大的太空岩石，可能对生命造成毁灭性影响。据估计，造成恐龙灭绝的小行星的直径约为10公里。
来源：中国新闻网 CNN
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