泡沫之夏
New advances in lunar soil research offer scientific evidence to unravel mystery of moon’s 'two faces'_我的网站
A |
Chinese scientists have made new progress in the study of lunar soil samples returned by the Chang'e-6 mission, providing fresh evidence to the striking differences between the moon's near and far sides, which have long puzzled scientists.
Because the moon is tidally locked to Earth, its rotation period matches its orbital period, meaning the same side always faces Earth. The moon's near side features vast dark basaltic plains known as lunar maria, while its far side is dominated by bright highlands with far fewer maria, creating a striking contrast between the two sides. Why does the moon have such "two faces"?
Scientists studying the moon's early formation and evolution have long used the lunar magma ocean model as a basic framework. Under the model, the chemical and isotopic characteristics of different types of lunar magma can be explained by the mixing of different components in varying proportions after the magma ocean cooled, Guangming Daily reported on Saturday.
However, previous lunar samples were collected only from the moon's near side, while significant differences exist between the near and far sides in their topography, composition and internal structure.
Against this backdrop, the research team from Institute of Geology from Chinese Academy of Geologist Sciences studied feldspathic impact-melt rocks in lunar soil samples returned by the Chang'e-6 mission. Using China's first independently developed ion probe system, researchers conducted a comprehensive analysis to test the lunar magma ocean model and examine how large impacts reshaped reservoirs in the lunar crust and mantle.
Through high-precision analyses, the team identified key clues to the moon's evolutionary history, suggesting that the stark differences between its near and far sides may be linked to the ancient giant impact that formed the South Pole-Aitken Basin.
The study found that the massive impact continued to profoundly reshape the lunar crust and upper mantle after the lunar magma ocean had solidified, fundamentally altering the material composition of parts of the moon's far side.
The findings add to the traditional lunar magma ocean model, suggesting that the formation and preservation of the moon's crustal and mantle reservoirs may have varied significantly from region to region and cannot be fully explained by a single, uniform model of primordial magma-ocean differentiation.
The research provides new scientific evidence for understanding the differences between the moon's near and far sides, while offering fresh insights into the moon's complex evolutionary history, according to Guangming Daily.
Global Times
。
B |
【环球网综合报道 记者赵友平】台湾“中央社”、中时新闻网等台媒14日消息称，台军将领被曝光疑似出入不正当场所。报道称，台“陆军八军团”副指挥官黄忠实少将被民众爆料，13日傍晚前往台南市一家“情色小吃部（有女陪侍的小吃店铺）”与朋友聚餐，有民众全程跟拍后向台防务部门检举。台“陆军司令部”14日回应称，“八军团”副指挥官黄忠实少将昨天傍晚接获退伍同袍邀约，确实前往台南小吃店向正在庆生的朋友夫妻致意后离去，目前已派人调查，若有过失将适当惩处。对此，有岛内网友表示，台军军纪败坏。也有人说，鬼才相信你军方的说辞。据中时新闻网报道，据了解，黄忠实13日下午5时许搭乘公务车，受一对朋友夫妻邀请，前往台南市一家小吃部与朋友聚餐，有人一路跟随，并进入小吃部偷偷跟拍，事后立刻向防务部门检举黄忠实出入“情色小吃部”。报道称，台防务部门收到检举后立即启动调查，据了解参与这场聚会的都是黄忠实的朋友，并未出现陪侍女子。
。
C | 报道还称，宴请地点是否为有女陪侍的不正当场所，以及是否有违反公务车使用规定，将是军方调查重点。台“陆军司令部”14日则称，初步查证，所属“八军团”副指挥官黄少将确实在13日傍晚5时许接到退伍同袍邀约，前往台南市安定区小吃店，向正在庆祝生日的朋友致意后随即离去。台“陆军司令部”称，台军对于高阶干部的行为、操守甚为重视，已派遣督察人员赴单位调查，如确有过失，将予以惩处。对于台“陆军八军团”少将副指挥官黄忠实被曝疑出入不正当场所，有岛内网友说：台军军纪败坏！↓也有网友说，“现在将官素质奇差无比，升官根本不是什么荣耀，一堆将官不知道都在搞什么”。
D | ↓有网友说：“不意外。
E | ”↓还有网友说，“鬼才相信你军方的说辞。”↓
Current article:http://www.jiubengtaibingpengou.pics/news/20260826_8334.xls
Published on:15:43:22