Abstract
The planetary space defense (PSD) system was analyzed for preparing the asteroid impact on the Earth. NASA’s operation, the Double Asteroid Redirection Test (DART) mission, has been investigated as the world’s first full-scale mission to test technology for defending the Earth against meteors or comets. The orbit time is shortening after the impact in which the orbit time of the meteor is obtained after the impact by the velocity of the impactor. The velocity of the impact is related to the energy, momentum, and direction which give the velocity of the impactor of the spacecraft. For the heavier of the unknown asteroids, one can estimate a new velocity of direction, where the velocity of the rocket is one of the variables to be described. A planetary defense strategy is proposed to avoid species extinction, which happened 65 million years ago.
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Acknowledgements
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Ministry of Science and ICT (MSIT) (NRF-2022M2B5A1080696) and a grant of the Cyber University of Korea.
Funding
This study was supported by the National Research Foundation of Korea (NRF), NRF-2022M2B5A1080696, to Taeho Woo, and The Cyber University of Korea, 1, to Taeho Woo.
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Woo, T.H. Feasibility study on nuclear propulsion impact on asteroid for planetary space defense (PSD). Rend. Fis. Acc. Lincei 34, 1127–1131 (2023). https://doi.org/10.1007/s12210-023-01186-w
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DOI: https://doi.org/10.1007/s12210-023-01186-w