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The '''Navigator Program''' is a long-term [[NASA]] project charged with over-seeing all missions related to the detection and characterization of [[Solar twin|Earth-like planets]].<ref name=Lawson_2006/> It also seeks to further understand how [[galaxies]], [[star]]s, and [[planets]] form. Navigator, with a 25-year time window, is essentially an umbrella program for more specific current and proposed projects which seek out Earth analogues and possible [[extraterrestrial life]]. The main components of Navigator include two ground-based and two space based missions.

On Earth:

* The [[Keck Interferometer]]. Initial interferometeric work began in 2005.
* The [[Large Binocular Telescope]]. Operational since 2005.

And in space:

* The [[SIM Planetquest]]. Was expected launch in 2015, but was canceled.
* The [[Terrestrial Planet Finder]]. First phase was projected to launch 2014, but was canceled.

The Navigator Program is itself an element of even larger decades long project of NASA: the [[Origins Program]], addressing the origins of the [[universe]], astronomical bodies, and [[life]].

==References==
{{reflist|refs=

<ref name=Lawson_2006>{{citation | postscript=.
| title=Navigator Program: exploring new worlds
| first=P. R. | last=Lawson | date=March 11, 2006
| work=2006 IEEE Aerospace Conference
| publisher=IEEE | isbn=0-7803-9545-X
| doi=10.1109/AERO.2006.1655731 }}</ref>

}}

[[Category:NASA programs]]

Navigator Program - Revision history

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