惊天解密
天文学家确认已知最大星系边界 宽度相当于十七个银河系并排排列_我的网站
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At the invitation of Chinese President Xi Jinping, President of the Republic of Ecuador Daniel Roy-Gilchrist Noboa Azín will pay a state visit to China from August 16 to 23, a Chinese foreign ministry spokesperson announced on Friday.
Noting that 2026 marks the 10th anniversary of the China-Ecuador comprehensive strategic partnership, the Chinese spokesperson said that China hopes the visit will help further consolidate political mutual trust between the two countries, carry forward the traditional friendship, and achieve new progress in the comprehensive strategic partnership for the benefit of the two peoples.
The spokesperson said Ecuador is an important Latin American country, and that the two sides have signed a document on Belt and Road cooperation and a free trade agreement, practical cooperation in various areas has been fruitful, and the friendship between the peoples has been deepening.
A release from Ecuador's Ministry of Foreign Affairs notes that the China leg serves as the first stop of his Asia tour, which will also take him to Vietnam and Singapore. The statement adds that the state visit to China is intended to deepen strategic ties and advance key initiatives spanning trade, investment, infrastructure, energy, technology and sustainable‑development cooperation.
Citing Ecuadorian foreign minister Roberto Kury, local media outlet Vistazo reported that the agenda would include Chinese investment interest in energy and mining, as well as Quito's aim of boosting its exports.
According to the Chinese Foreign Ministry, the upcoming visit will be President Daniel Noboa's first state visit to China. It's also President Noboa's second visit to China following his initial trip in June 2025 for the Annual Meeting of the New Champions in North China's Dalian.
During Noboa's last China visit, he met with the Chinese leader in Beijing. The two heads of state jointly witnessed the signing of the cooperation plan between China and Ecuador on jointly promoting Belt and Road cooperation.
Ecuadorian digital outlet Primicias wrote that the trip will mark a new chapter in the bilateral relationship that Ecuador has consolidated with one of its key economic partners.
"In recent years, China‑Ecuador relations have maintained steady growth. This upcoming visit is expected to further consolidate high‑level political mutual trust between the two countries and forge top‑level consensus for further cooperation in the next phase," Pan Deng, director of the Latin America and Caribbean Region Law Center at the China University of Political Science and Law, told the Global Times on Friday.
Meanwhile, the visit will also help strengthen the bilateral institutional cooperation network, translate cooperation plans into concrete outcomes across niche sectors, and establish a multi‑tiered dialogue mechanism covering governments, enterprises and academia, Pan noted.
"Pragmatic cooperation between China and Ecuador has outgrown fragmented, ad hoc short‑term projects, entering a new era of long‑term cooperation that is institutionalized, regular and scalable," Pan added.
According to China's Ministry of Commerce, the China‑Ecuador Free Trade Agreement was signed on May 11, 2023 and officially entered into force on May 1, 2024. Ecuador thus became China's 27th free‑trade partner and the fourth for China in Latin America.
China has, for consecutive years, stood as Ecuador's second‑largest trading partner. Figures from China's Ministry of Foreign Affairs show that the bilateral trade volume stood at $17.33 billion in 2025, marking a 24‑percent year‑on‑year rise. For the January‑April period of 2026, bilateral trade totaled $6.28 billion, representing nearly 20‑percent year‑on‑year growth.
Pan noted that China‑Ecuador cooperation represents a typical model of complementary development. China boasts strengths in the market, production capacity, technology and capital, while Ecuador is endowed with high‑quality agricultural and marine resources, clean‑energy potential and a favorable Pacific geographic location. The two sides form a sound partnership based on mutual benefit and win‑win outcomes.
Specifically, Ecuador's agricultural produce, aquatic products and specialty resources steadily continue to enter the Chinese market. In terms of investment and infrastructure, Chinese players have long taken part in local livelihood projects and infrastructure building that align with Ecuador's actual development needs, he noted.
Ahead of the Ecuadorian president's state visit to China, Uruguayan President Yamandu Orsi travelled to China in February as Latin America's first head of state to visit China in 2026. During Orsi's visit, the two sides issued a joint statement on deepening their comprehensive strategic partnership, and signed more than 10 cooperation documents covering investment, trade and other fields.
Much like China‑Uruguay ties, evolving China‑Ecuador relations demonstrate that Latin American countries can pursue development‑oriented practical cooperation through independent diplomacy, without being forced to take sides or sacrificing their sovereignty and economic autonomy, said Pan.
Amid rising trade protectionism, geopolitical disruptions and heightened market uncertainties, the two sides uphold open cooperation and mutual benefit, offering the Global South a viable pathway for cooperation rooted in equality, mutual benefit, stability and no political strings attached, he added.
。 这张图像展示了已知最大星系IC1101。图片来源：NASA/ESA/哈勃太空望远镜 据ScienceNews网站最新报道，包括西班牙天文学家在内的联合团队通过超深成像观测确认已知最大星系边界。这个名为IC1101的星系直径达到约520千秒差距（星系尺度单位），接近170万光年，宽度相当于17个银河系并排排列，而这个星系目前还在成长。 确定这一尺度的关键，是天文学家获取了迄今对IC1101曝光时间最长、探测最深的影像。这些图像由位于西班牙加那利群岛拉帕尔马岛的艾萨克·牛顿望远镜于早前拍摄。经过最新详细测算，天文学家得以识别这颗巨星系暗淡的外缘，同时算出IC1101的恒星物质总质量约为3.4万亿个太阳质量。 IC1101坐落在距地球超过10亿光年的Abell2029星系团中心，是该星系团中光度最高的星系。这类星系位居宇宙中最庞大星系之列，其成长方式是通过反复吞并附近较小的星系来不断扩张，这一过程被称作星系同类相食。
B | 此前的研究已经暗示IC1101体量巨大，但始终未能精确界定星系本体与外围星系团弥散物质之间的过渡边界。本次超深观测填补了这一空白。加那利天体物理研究所的天文学家们在星系边缘识别出带状尾流结构，认为这是IC1101与其他星系发生并合的产物，表明该星系迄今仍在吸积物质，生长并未停止。
C | 加那利天体物理研究所天文学家卡洛斯·马雷罗-德拉罗萨表示，IC1101展示了涉及反复并合与吸积的星系演化过程在极端尺度上的样貌，是可参照的星系未来演变样本。
D | 这次边界判定之所以重要，是因为最亮团星系的暗弱外围通常会混入星系团的弥漫星光，导致很难判断巨星系本体的终结位置。IC1101的测量结果为这类天体的尺度研究提供了方法论样本。
E | 作为已知最大的星系，它的存在也揭示了在数十亿年的时间尺度上，宇宙中的最大尺度星系结构可以通过持续吞并周围星系而发展到何等极端的规模。（记者张梦然）。
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