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JUST光谱望远镜向未知发问
Xin Lang Cai Jing· 2026-02-07 07:21
Core Insights - The article discusses the advancements in astronomical observation and the significance of dark matter and dark energy in understanding the universe, highlighting the need for innovative observational tools to explore these mysteries [2][3]. Group 1: Dark Matter and Dark Energy - Less than 5% of the universe is composed of visible matter, while over 95% consists of dark matter and dark energy, which are crucial for shaping galaxy structures and driving cosmic expansion [2]. - Understanding dark matter and dark energy could lead to a revolution in physics, comparable to the impacts of relativity and quantum mechanics [2]. Group 2: Global Scientific Efforts - Global scientific efforts have been ongoing for decades, with various international observational projects like the DESI project in the U.S., the Euclid space telescope in Europe, and Japan's Subaru-PFS aiming to uncover the secrets of the universe [2][3]. Group 3: China's Astronomical Advancements - China is making significant strides in astronomy, although it still lags behind in ground-based optical spectral observation capabilities compared to international standards [3]. - The Guo Shoujing Telescope (LAMOST) and the upcoming Chinese Space Station Telescope (CSST) are notable projects, with CSST expected to achieve breakthroughs in galaxy imaging by 2027 [3][4]. Group 4: JUST Telescope Project - The JUST telescope, a 4.4-meter spectroscopic telescope located in Qinghai, aims to capture the "fingerprints" of the universe by obtaining spectra from tens of millions of galaxies [4]. - JUST is designed to have the highest fiber positioning density globally, allowing it to capture spectra from dense regions of the sky, significantly improving coverage compared to existing telescopes [4][5]. Group 5: Scientific Goals and Future Plans - JUST plans to observe over ten million galaxies within the next five years, creating a detailed three-dimensional map of the universe and accurately measuring the history of cosmic expansion [5]. - The telescope will utilize advanced technology and a prime observational site to transition China's astronomy from data consumption to active interpretation of cosmic phenomena [5].