金星可能有条大型“地下通道”

Core Insights - Venus and Earth are similar in size and origin but have vastly different environments, with Venus having surface temperatures exceeding 480°C and atmospheric pressure nearly 100 times that of Earth [2] - Radar data from NASA's Magellan spacecraft revealed that Venus's surface is dominated by volcanic features, indicating a geological evolution heavily influenced by volcanic activity [2] Group 1 - The research focuses on the presence of collapse pits or "skylights" on Venus's surface, which may indicate the existence of underground cavities [3] - A significant collapse pit was discovered in the Nix Mountains region, suggesting a possible connection to a large underground channel with a diameter of approximately 1 kilometer and a depth exceeding 375 meters [3] - The unique environmental conditions on Venus, such as lower surface gravity and denser atmosphere, may allow for the formation of larger underground cavities compared to Earth [3] Group 2 - Although the findings are promising, the evidence remains indirect, and confirmation of these channels requires higher resolution radar and new exploration missions [3] - Future missions, including ESA's "EnVision" and NASA's "Veritas," are expected to provide advanced radar and imaging capabilities to further investigate Venus's surface and subsurface structures [3]