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Water may have been brought to Earth by asteroids
地球上的水或来自含水小行星
The Japan Aerospace Exploration Agency (JAXA) published a research report in Nature Astronomy on Monday, suggesting that the Earth’s water may have been brought by asteroids.
日本宇宙航空研究开发机构JAXA于8月15日在《自然?天文学》发表研究报告，认为地球上的水或许是由小行星带来。
In order to study the origin of life and the universe, Japan launched the asteroid probe Hayabusa 2 in 2014. In 2018, it arrived at asteroid Ryugu, and successfully collected rock samples from it. The recovery capsule returned to Earth in 2020.
为研究生命和宇宙起源，日本于2014年发射小行星探测器“隼鸟2号”，2018年抵达小行星“龙宫”，并成功采集了其岩石样本，“隼鸟2号”回收舱于2020年返回地球。
The researchers studied eight particles from Ryugu and found phyllosilicates, which are formed by chemical reaction between non-aqueous silicate minerals and liquid water, indicating that liquid and frozen water were both present.
报告中提到，研究人员通过研究8颗“龙宫”沙粒，发现其中均存在页硅酸盐，它是通过非含水硅酸盐矿物和液态水的化学反应形成，表明“龙宫”上或存在过液态水和冰冻水。
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