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List of proposed space observatories


List of proposed space observatories

List of proposed space observatories: examples of past and present space observatory plans, concepts, and proposals. For observatories in orbit see, List of space telescopes.

Name Agency Planned
Launch Date
Fate Planned Location Ref(s)
Advanced Technology Large Aperture Space Telescope Space Telescope Science Institute Sun-Earth L2 Lagrange point [1]
X-Ray Evolving Universe Spectroscopy Mission (XEUS) ESA Merged into IXO [2]
Constellation-X NASA Merged into IXO
International X-ray Observatory NASA & ESA & JAXA No funding 2011 [3]
Spectrum-X-Gamma IKI & NASA [4]
Astrosat ISRO TBA Earth orbit (650 km) [5][6]
SIM Lite Astrometric Observatory NASA 2015 No funding 2010 [7]
Darwin Mission ESA - - Sun-Earth L2 Lagrange point [8]
Euclid ESA 2019 Sun-Earth L2 Lagrange point
Terrestrial Planet Finder NASA TBA No funding 2011 [9]
Dark Universe Observatory NASA Superseded by WFIRST Earth orbit (600 km) [10][11]
Dark Energy Space Telescope NASA & DOE Superseded by WFIRST [12]
Wide Field Infrared Survey Telescope (WFIRST) (IR) NASA & DOE 2020 Sun-Earth L2 Lagrange point [13][14]
Astromag Free-Flyer (Particles) NASA 1 January 2005 Earth orbit (500 km) [15][16]
VSOP-2 (Astro-G) (Radio) JAXA 2012 Cancelled 2011 - [17]
Exoplanetary Circumstellar Environments and Disk Explorer (EXCEDE) NASA 2016 Sun-synchronous Earth orbit, 2000 km [18][19]
Laser Interferometer Space Antenna (LISA) NASA 2018 No funding 2011 Solar orbit (approx. 1 AU; trailing Earth) [20]
ZEBRA NASA - 10AU+ [21]
World Space Observatory (WSO-UV) RSA - [22]


  • Additional examples 1
  • Gallery 2
  • References 3
  • External links 4

Additional examples

Calisto architecture for SAFIR.[23]



  1. ^ "Advanced Technology Large-Aperture Space Telescope". Space Telescope Science Institute. Retrieved 2010-10-08. 
  2. ^ "KEUS - The X-Ray Evolving Universe Spectroscopy Mission". ESA. Retrieved 2008-02-28. 
  3. ^ "Official NASA IXO Home Page". NASA. Retrieved 2008-02-28. 
  4. ^ "NASA - NSSDC - Spacecraft - Details (Spectrum-X-Gamma)". NASA. Retrieved 2008-02-27. 
  5. ^ "ASTROSAT - An Indian Multiwave Astronomy Satellite".  
  6. ^
  7. ^ "SIM Lite JPL". NASA. Retrieved 2009-03-19. 
  8. ^ "ESA Science & Technology: Darwin". ESA. Retrieved 2008-02-28. 
  9. ^ "Planet Quest: Missions - Terrestrial Planet Finder". NASA. Retrieved 2008-03-03. 
  10. ^ "Dark Universe Observatory".  
  11. ^ "Dark Universe Observatory - About the Launch Vehicle and Orbit". Sonoma State University. Retrieved 2008-02-29. 
  12. ^ "Destiny JDEM Mission Public Page".  
  13. ^ "$1.6 Billion Telescope Would Search Alien Planets and Probe Dark Energy". SPACE. Retrieved 2010-10-09. 
  14. ^ "Astro2010 Report Release Presentation" (PDF). NASA. Retrieved 2010-10-09. 
  15. ^ "NASA - NSSD - Spacecraft - Trajectory Details (Astromag FF)". NASA. Retrieved 2008-02-27. 
  16. ^ "NASA - NSSDC - Spacecraft - Details (Astromag-F)". NASA. Retrieved 2008-02-27. 
  17. ^ "VSOP-2 project". JAXA. Retrieved 2008-02-28. 
  18. ^ "EXCEDE Home Page". University of Arizona. Retrieved 2012-02-23. 
  19. ^ "EXCEDE the Search for Planets". Astrobiology magazine. Retrieved 2012-02-23. 
  20. ^ "ESA Science & Technology: LISA". ESA. Retrieved 2008-02-27. 
  21. ^ ZEBRA
  22. ^ WSO-UV
  23. ^ SAFIR
  24. ^ Gunter's Space Page - ExoplanetSat
  25. ^ M. Wong , et al. - A Dedicated Space Observatory for Time-domain Solar System Science

External links

  • Video (86:49) - "Search for Life in the Universe" - NASA (July 14, 2014).
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