Sayari-nje : Tofauti kati ya masahihisho
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Mstari 4:
Mnamo mwaka 2017 zaidi ya sayari za nje 3000 zinazozunguka [[nyota]] mbalimbali zilitambuliwa tayari. <ref>{{cite web|url=http://exoplanetarchive.ipac.caltech.edu/cgi-bin/ExoTables/nph-exotbls?dataset=planets|title=Exoplanet Archive Planet Counts|publisher=}}</ref><ref name="kepler1700">{{cite web |last1=Johnson |first1=Michele |last2=Harrington |first2=J.D. |title=NASA's Kepler Mission Announces a Planet Bonanza, 715 New Worlds |url=http://www.nasa.gov/ames/kepler/nasas-kepler-mission-announces-a-planet-bonanza/ |date=February 26, 2014 |work=[[NASA]] |accessdate=February 26, 2014 }}</ref><ref>{{cite web|url=http://phl.upr.edu/projects/habitable-exoplanets-catalog|title=The Habitable Exoplanets Catalog - Planetary Habitability Laboratory @ UPR Arecibo|publisher=}}</ref>
Hadi [[miaka ya 1990]] [[idadi]] kubwa ya [[wanaastronomia]] bado walihangaika kama sayari za nje ziko au la. Mwaka [[1992]] watafiti [[Aleksander Wolszczan]] na [[Dale Frail]] waliofanya [[kazi]] ya [[astronomia ya redio]] walitangaza kugunduliwa kwa sayari [[mbili]] zinazozunguka [[nyota
[[File:Size of Kepler Planet Candidates.jpg|thumb|300px|right|Sizes of ''Kepler'' Planet Candidates – based on 2,740 candidates orbiting 2,036 stars {{As of|2013|11|04|lc=on}} (NASA).]]
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