Terrestrial Planet Finder

The Terrestrial Planet Finder (TPF) was a proposed project by NASA to construct a system of telescopes for detecting extrasolar terrestrial planets. TPF was postponed several times and finally cancelled. There were actually two telescope systems under consideration, the TPF-I, which had several small telescopes, and TPF-C, which used one large telescope.

Read more about Terrestrial Planet Finder:  History, Top 10 Target Stars

Famous quotes containing the word planet:

    “Mad? Is it mad that you destroy other people to save yourselves? You have done this. Is it mad that one country must destroy another to save themselves? You have also done this. How then is it mad that one planet must destroy another who threatens their very existence?”
    —Edward D. Wood, Jr. (1922–1978)