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隼鸟号小行星探测器
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人类“拜访”过这些小行星
Huan Qiu Wang Zi Xun· 2025-05-30 03:21
Group 1 - The article discusses the evolution of asteroid exploration, highlighting the transition from telescopic observations to dedicated space missions [1][2] - The first close-up images of asteroids were captured by the Galileo spacecraft in 1991, marking a significant milestone in asteroid research [1] - The NEAR Shoemaker spacecraft became the first to land on an asteroid, specifically Eros, in 2001, providing detailed data on its physical and geological characteristics [1] Group 2 - Japan's Hayabusa spacecraft, launched in 2003, collected approximately 1,500 microscopic samples from the Itokawa asteroid, weighing about 0.0018 grams [2] - NASA's Dawn spacecraft explored both Vesta and Ceres, two distinct bodies in the asteroid belt, providing insights into their composition and evolution over nearly four years [2] - Various asteroid missions have employed different exploration methods, including flybys, landings, sample returns, and impact techniques, showcasing the advancements in space exploration technology [2]