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星际彗星3I/ATLAS观测到水活动,揭示生命化学成分并非太阳系独有
这一发现的特别之处在于观测到这种活动时的距离:2.90天文单位(au),远超大多数太阳系彗星显示出明显活动迹象的区域。(背景延伸:1天文单位定义为地球到太阳的平均距离,约为1.496亿公里。) 奥本大学物理学教授、该研究的首席研究员丹尼斯·博德维茨(Dennis ...
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