THE FAR FUTURE: BEYOND 2020

Life Finder
Once we identify any habitable planets, Life Finder would fly telescopes at even larger distances to detect chemicals that actually reveal biological activities--that is, the presence of life.

Planet Imager
If we found a planet with life, we wouldn't leave it to our imagination! To create a picture would require a number of telescopes flying in formation to achieve the power of a telescope 360 kilometers wide.

Nasa Origins Missions

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So the timeline is planned as follows:

2014 - launch of Terrestrial Planet Finder - Coronagraph
2019 - launch of Terrestrial Planet Finder - Interferometer
20?? - launch of TPF-class Life Finder
2??? - launch of TPF-class formation-flying Planet Imager array