Published March 24, 2009 | Version Published
Journal Article Open

Darwin —- a mission to detect and search for life on extrasolar planets

  • 1. ROR icon The Open University
  • 2. ROR icon Institut d'Astrophysique Spatiale
  • 3. ROR icon European Space Research and Technology Centre
  • 4. ROR icon Max Planck Society
  • 5. ROR icon Harvard-Smithsonian Center for Astrophysics
  • 6. ROR icon French National Centre for Scientific Research
  • 7. ROR icon California Institute of Technology
  • 8. ROR icon University of Bern
  • 9. ROR icon Centre de biophysique moléculaire
  • 10. ROR icon Netherlands Institute for Space Research
  • 11. ROR icon Autonomous University of Madrid
  • 12. ROR icon University of St Andrews
  • 13. ROR icon United States Naval Observatory
  • 14. ROR icon University of Hertfordshire
  • 15. ROR icon Space Research Institute
  • 16. ROR icon Jet Propulsion Lab
  • 17. ROR icon Chalmers University of Technology
  • 18. ROR icon Laboratoire d'Astrophysique de Marseille
  • 19. ROR icon National Institute for Astrophysics
  • 20. ROR icon James Hutton Institute
  • 21. ROR icon Leiden University
  • 22. ROR icon Centre for Astrophysics of the University of Porto
  • 23. ROR icon Nagoya University
  • 24. ROR icon National Astronomical Observatory of Japan
  • 25. ROR icon University of Montpellier

Abstract

The discovery of extrasolar planets is one of the greatest achievements of modern astronomy. The detection of planets that vary widely in mass demonstrates that extrasolar planets of low mass exist. In this paper, we describe a mission, called Darwin, whose primary goal is the search for, and characterization of, terrestrial extrasolar planets and the search for life. Accomplishing the mission objectives will require collaborative science across disciplines, including astrophysics, planetary sciences, chemistry, and microbiology. Darwin is designed to detect rocky planets similar to Earth and perform spectroscopic analysis at mid-infrared wavelengths (6–20 μm), where an advantageous contrast ratio between star and planet occurs. The baseline mission is projected to last 5 years and consists of approximately 200 individual target stars. Among these, 25–50 planetary systems can be studied spectroscopically, which will include the search for gases such as CO_2, H_2O, CH_4, and O_3. Many of the key technologies required for the construction of Darwin have already been demonstrated, and the remainder are estimated to be mature in the near future. Darwin is a mission that will ignite intense interest in both the research community and the wider public.

Additional Information

© 2009 Mary Ann Liebert, Inc. Published in Volume: 9 Issue 1: March 24, 2009. Online Ahead of Print: February 9, 2009.

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Eprint ID
15068
Resolver ID
CaltechAUTHORS:20090817-134520824

Dates

Created
2009-08-18
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Updated
2021-11-08
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