| Year | Event / Link | additional information |
|---|
| 2022 | October 2022: for the first time one of my PHT candidates was confirmed | TOI-5174 b |
| 2022 | possible first ocean world discovered | TOI-1452 b: Transiting Exoplanet Survey Satellite (TESS) |
| 2021 | since May I (Gerd Gühne) started to work at Planet Hunters TESS (PHT) and from October also at Planet Hunters NGTS | |
| 2021 | 27th December 2021: I discovered my first exoplanet candidate on PHT | TIC 59490344.01 |
| 2019 | Nobel prize for exoplanet hunters Mayor & Queloz | 51 Pegasi b |
| 2018 | first exoplanet discovered with TESS space telescope | HD 1397 b: Transiting Exoplanet Survey Satellite (TESS), L.D. Nielsen |
| 2017 | first Earth-sized planet in habitable zone discovered | KIC 6444896 b: Isabel Angelo, Kepler Space Telescope |
| 2016 | the first large-scale demonstration of a fully automated transiting planet validation procedure | Timothy D. Morton |
| 2016 | exoplanet around the nearest star discovered | Proxima Centauri b: Guillem Anglada-Escude |
| 2012 | first exoplanet discovered by an amateur astronomer | KIC 4862625 b: California and Carnegie Planet Search, Planet Hunters project (Zooniverse), Kepler Space Telescope, Peter McCullough, Guillaume Hebrard, M. E. Schwamb, Jeff A. Valenti, Magali Deleuil, Rodrigo Diaz, Veselin B. Kostov, Tobias Hinse, Zlatan Tsvetanov |
| 2011 | NASA's Exoplanet archiv established | |
| 2011 | first Earth-sized exoplanet | KIC 6850504 f: California and Carnegie Planet Search, Kepler Space Telescope, Geoffrey W. Marcy, Andrew W. Howard, J. Rowe, Guillermo Torres, David Charbonneau, David W. Latham, Steve B. Howell, Stephen T. Bryson, Francois Fressin |
| 2007 | first exoplanet discovered with Corot space telescope | CoRoT-1 b: Geneva Extrasolar Planet Search, Corot Scientific Committee, CoRoT Telescope, Didier Queloz, A. Hatzes, Tsevi Mazeh, Guillaume Hebrard, J. Schneider, C. Moutou, F. Pont, M. Gillon, P. Barge, A. Baglin, M. Auvergne |
| 2006 | first exoplanet discovered with Kepler space telescope | KIC 11446443 b: TrES Project, Kepler Space Telescope, Edward W. Dunham, G. Mandushev, F. T. O'Donovan, A. Sozzetti, Guillermo Torres, David Charbonneau, David W. Latham |
| 2004 | first microlensing exoplanet | MOA-2003-BLG-053L b: OGLE Project, MOA Project, A. Udalski, I. Bond, M. Jaroszynski, N. Rattenbury |
| 2003 | first discovered exoplanet with direct imaging method | Beta Pictoris b: Geneva Extrasolar Planet Search, A.-M. Lagrange, Michel Mayor, Stephane Udry, Francesco Pepe, F. Galland, Jean-Luc Beuzit, A. Chelli |
| 2002 | first version of program "Planetensuche" developed, inspired by a science article "The search for a second Earth" in bild der wissenschaft (a German magazine) 5/2000 | |
| 2002 | first transit exoplanet | OGLE-TR-56 b: OGLE Project, M. Konacki, A. Udalski |
| 1995 | exoplanet.eu established | |
| 1995 | first discovered exoplanet around a sun-like star | 51 Pegasi b: Geneva Extrasolar Planet Search, Michel Mayor, Didier Queloz |
| 1989 | first discovered exoplanet and first one in a double star system | HD 114762 b: Geneva Extrasolar Planet Search, Michel Mayor, Tsevi Mazeh, David W. Latham |