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外媒:马斯克的星链干扰低频射电天文观测 问题日益严峻
Sou Hu Cai Jing· 2025-07-31 09:59
Core Viewpoint - The Starlink satellite network by SpaceX is significantly interfering with radio astronomy, affecting up to 30% of low-frequency radio astronomical images, which severely limits related scientific research [1][3]. Group 1: Research Findings - A recent study analyzed tens of millions of astronomical images and found that the interference from Starlink satellites is due to passive electromagnetic noise generated by onboard electronic devices, rather than active signal transmission [3]. - The noise is unpredictable and exhibits variability across different datasets, making it difficult for scientists to completely eliminate it using conventional filtering techniques [3]. - Some satellites have been detected emitting signals in protected radio frequency bands, such as 150.8 MHz, which are reserved for radio astronomy [3]. Group 2: Regulatory and Mitigation Efforts - Although Starlink is not currently violating any international regulations, the complexity of the issue is acknowledged, and the research team has engaged in constructive dialogue with SpaceX to seek mitigation solutions [4]. - Historically, astronomers could schedule observations to avoid satellite transits, but this strategy is becoming increasingly difficult as the number of Starlink satellites continues to grow [4]. - Organizations like the "Dark Sky Protection Center" under the International Astronomical Union have developed satellite tracking tools to help observatories optimize their observation windows [4]. Group 3: Future Implications - Experts emphasize that while the current interference has not led to a "collapse" of radio astronomy, the ongoing expansion of the Starlink constellation and the potential emergence of similar large satellite groups will exacerbate the problem [5]. - If Starlink continues to operate successfully, it may encourage more commercial companies to deploy similar systems, creating a "satellite swarm" effect that further compresses the observational space for ground-based astronomy [5].