Similar Initiatives
The interferometric version of NASA's Terrestrial Planet Finder mission is similar in concept to Darwin and also has very similar scientific aims. According to NASA's 2007 budget documentation, released on February 6, 2006, the project was deferred indefinitely, and in June 2011 the project was reported as cancelled. Antoine Labeyrie has proposed a much larger space-based astronomical interferometer similar to Darwin, but with the individual telescopes positioned in a spherical arrangement and with an emphasis on interferometric imaging. This Hypertelescope project would be much more expensive and complex than the Darwin and TPF missions, involving many large free-flying spacecraft.
Read more about this topic: Darwin (spacecraft)
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