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Successful kinetic impact into an asteroid for planetary defence.
Daly, R Terik; Ernst, Carolyn M; Barnouin, Olivier S; Chabot, Nancy L; Rivkin, Andrew S; Cheng, Andrew F; Adams, Elena Y; Agrusa, Harrison F; Abel, Elisabeth D; Alford, Amy L; Asphaug, Erik I; Atchison, Justin A; Badger, Andrew R; Baki, Paul; Ballouz, Ronald-L; Bekker, Dmitriy L; Bellerose, Julie; Bhaskaran, Shyam; Buratti, Bonnie J; Cambioni, Saverio; Chen, Michelle H; Chesley, Steven R; Chiu, George; Collins, Gareth S; Cox, Matthew W; DeCoster, Mallory E; Ericksen, Peter S; Espiritu, Raymond C; Faber, Alan S; Farnham, Tony L; Ferrari, Fabio; Fletcher, Zachary J; Gaskell, Robert W; Graninger, Dawn M; Haque, Musad A; Harrington-Duff, Patricia A; Hefter, Sarah; Herreros, Isabel; Hirabayashi, Masatoshi; Huang, Philip M; Hsieh, Syau-Yun W; Jacobson, Seth A; Jenkins, Stephen N; Jensenius, Mark A; John, Jeremy W; Jutzi, Martin; Kohout, Tomas; Krueger, Timothy O; Laipert, Frank E; Lopez, Norberto R.
Afiliação
  • Daly RT; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA. terik.daly@jhuapl.edu.
  • Ernst CM; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Barnouin OS; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Chabot NL; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Rivkin AS; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Cheng AF; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Adams EY; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Agrusa HF; University of Maryland, College Park, MD, USA.
  • Abel ED; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Alford AL; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Asphaug EI; University of Arizona, Tucson, AZ, USA.
  • Atchison JA; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Badger AR; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Baki P; Technical University of Kenya, Nairobi, Kenya.
  • Ballouz RL; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Bekker DL; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Bellerose J; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
  • Bhaskaran S; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
  • Buratti BJ; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
  • Cambioni S; Massachusetts Institute of Technology, Cambridge, MA, USA.
  • Chen MH; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Chesley SR; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
  • Chiu G; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Collins GS; Imperial College London, London, UK.
  • Cox MW; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • DeCoster ME; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Ericksen PS; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Espiritu RC; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Faber AS; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Farnham TL; University of Maryland, College Park, MD, USA.
  • Ferrari F; Politecnico di Milano, Milan, Italy.
  • Fletcher ZJ; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Gaskell RW; Planetary Science Institute, Tucson, AZ, USA.
  • Graninger DM; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Haque MA; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Harrington-Duff PA; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Hefter S; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Herreros I; Centro de Astrobiologiá (CAB) CSIC-INTA, Torrejón de Ardoz, Spain.
  • Hirabayashi M; Auburn University, Auburn, AL, USA.
  • Huang PM; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Hsieh SW; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Jacobson SA; Michigan State University, East Lansing, MI, USA.
  • Jenkins SN; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Jensenius MA; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • John JW; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Jutzi M; University of Bern, Bern, Switzerland.
  • Kohout T; Institute of Geology of the Czech Academy of Sciences, Prague, Czech Republic.
  • Krueger TO; University of Helsinki, Helsinki, Finland.
  • Laipert FE; Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA.
  • Lopez NR; Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA, USA.
Nature ; 616(7957): 443-447, 2023 04.
Article em En | MEDLINE | ID: mdl-36858073
Although no known asteroid poses a threat to Earth for at least the next century, the catalogue of near-Earth asteroids is incomplete for objects whose impacts would produce regional devastation1,2. Several approaches have been proposed to potentially prevent an asteroid impact with Earth by deflecting or disrupting an asteroid1-3. A test of kinetic impact technology was identified as the highest-priority space mission related to asteroid mitigation1. NASA's Double Asteroid Redirection Test (DART) mission is a full-scale test of kinetic impact technology. The mission's target asteroid was Dimorphos, the secondary member of the S-type binary near-Earth asteroid (65803) Didymos. This binary asteroid system was chosen to enable ground-based telescopes to quantify the asteroid deflection caused by the impact of the DART spacecraft4. Although past missions have utilized impactors to investigate the properties of small bodies5,6, those earlier missions were not intended to deflect their targets and did not achieve measurable deflections. Here we report the DART spacecraft's autonomous kinetic impact into Dimorphos and reconstruct the impact event, including the timeline leading to impact, the location and nature of the DART impact site, and the size and shape of Dimorphos. The successful impact of the DART spacecraft with Dimorphos and the resulting change in the orbit of Dimorphos7 demonstrates that kinetic impactor technology is a viable technique to potentially defend Earth if necessary.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article
Texto completo
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2023 Tipo de documento: Article