# List of exoplanet search projects

The following is a list of exoplanet search projects.

## Ground-based search projects

| Project name | Status | Number of exoplanets found | Notes |
| Anglo-Australian Planet Search (AAPS) | Active | 28 (as of February 2014) | |
| Automated Planet Finder (APF) | Active | 0 | based at the Lick Observatory (also known as the Rocky Planet Finder) |
| Carl Sagan Institute | Active | 0 | |
| CARMENES | Active | 60+ | based at Calar Alto Observatory |
| CORALIE spectrograph | Active | 5 | based at Leonhard Euler Telescope |
| East-Asian Planet Search Network (EAPSNET) | Active | 1 | |
| ELODIE | Decommissioned | 4 | |
| EPICS | Future (2030?) | N/A | based at the E-ELT |
| ESPRESSO | Active | N/A | based at the VLT |
| EXPRES | Active | N/A | based at the Lowell Discovery Telescope |
| FINDS Exo-Earths | Active | 0 | based at the 3m telescope at Lick Observatory |
| Gemini Planet Imager (GPI) | Active | 1 | |
| Geneva Extrasolar Planet Search | Active | 1+ | |
| High Accuracy Radial Velocity Planet Searcher (HARPS) | Active | 130+ | |
| HARPS-N | Active | 18+ | |
| HATNet and HATSouth Projects (HAT) | Active | 109 | |
| Hunt for Exomoons with Kepler (HEK) | Active | 0 (A few candidates, including Kepler-1625 b I) | |
| HiCIAO | Active | 0 | |
| High Resolution Echelle Spectrometer (HIRES) | Active | 7+ | based at the W. M. Keck Observatory |
| KELT | Decommissioned | 26 | |
| Lick–Carnegie Exoplanet Survey (LCES) | Active | 1+ | |
| Magellan Planet Search Program | Active | 10+ | |
| MARVELS | Active | 1+ | |
| MASCARA | Active | 5 | |
| MEarth Project | Active | 3 | |
| Microlensing Follow-Up Network (MicroFUN) | Merged with PLANET | 10 | |
| Microlensing Observations in Astrophysics (MOA) | Active | 8 | Mt. John University Observatory |
| MINiature Exoplanet Radial Velocity Array (MINERVA) | Active | 0 | |
| N2K Consortium | Active | 7 | |
| New Mexico Exoplanet Spectroscopic Survey Instrument (NESSI) | Active | 0 | |
| Next-Generation Transit Survey (NGTS) | Active | 20 | at Paranal, since 2015 |
| Okayama Planet Search Program (OPSP) | Active | 6 | |
| Optical Gravitational Lensing Experiment (OGLE) | Active | 17+ | |
| PlanetPol | Decommissioned | 0 | |
| PRL Advanced Radial-velocity All-sky Search (PARAS) | Active | 3 | Spectrograph integrated with the 1.2m Gurushikhar Observatory in Mount Abu, India. |
| Project 1640 | Active | 0+ | |
| Qatar Exoplanet Survey (QES) | Active | 9 | |
| Search for extraterrestrial intelligence (SETI) | Active | 0 | |
| SOPHIE échelle spectrograph | Active | 0+ | |
| Spectro-Polarimetric High-Contrast Exoplanet Research (SPHERE) | Active | 1+ | |
| SPECULOOS | Commissioning | - | Searching 1,200 nearby "Ultra Cool Dwarfs" (M7 and later). Successor to TRAPPIST. |
| Strategic Explorations of Exoplanets and Disks with Subaru (SEEDS) | Active | 1+ | |
| SuperWASP (WASP) | Active | 191 | |
| Systemic | Active | 0 | an amateur search project |
| The Habitable Exoplanet Hunting Project | Active | 1 (candidate) | International network of more than 30 observatories including universities and amateur astronomers. |
| Trans-Atlantic Exoplanet Survey (TrES) | Decommissioned | 5 | |
| Transiting Planets and Planetesimals Small Telescope (TRAPPIST) | Active | 7 | Searching 50 nearby "Ultra Cool Dwarfs" (M7 and later). Prototype for SPECULOOS. |
| XO Telescope (XO) | Active | 7 | |
| ZIMPOL/CHEOPS | Active | 0 | subsystem of the VLT-SPHERE instrument, based at the VLT |
| COCONUTS | Active | 3 | Large-scale survey for wide-orbit planetary and substellar companions |

## Space missions
### Past and current

| Name | Launch date | End date | Number of exoplanets found | Current candidates | Telescope use |
| MOST | June 20, 2003 | March 2019 | 1+ | 0 | First spacecraft dedicated to the study of asteroseismology |
| EPOXI | July 21, 2005 | August 8, 2013 | 0 | 0 | Characterized planets and fly-by of comet |
| SWEEPS | 2006 | 2006 | 16 | 0 | Based from the HST, a short 7 day mission looking for exoplanets |
| CoRoT | December 27, 2006 | November 2, 2012 | 34 | 600 | Mission to look for exoplanets using the transit method |
| Kepler | March 7, 2009 | August 15, 2013 | 3,246 | 4,711 | Mission to look for large numbers of exoplanets using the transit method |
| K2 | November 18, 2013 | October 30, 2018 | 427 | 891 (+627 microlensing events) | After the reaction wheels failed on Kepler, this mission was created |
| Gaia | December 19, 2013 | Ongoing | 0 | 0 | Map 1 billion astronomical objects in the Milky Way (First data Release November 2, 2016) |
| ASTERIA | November 2017 | December 5, 2019 | 0 | 0 | CubeSat, technology demonstrator |
| TESS | April 18, 2018 | Ongoing | 233+ | 3,876 | To search for new exoplanets; rotating so by the end of its two-year mission it will have observed stars from all over the sky. It is expected to find at least 3,000 new exoplanets. |
| CHEOPS | 2019 | Ongoing | 2+ | 0 | To learn more about how exoplanets form, probe atmospheres, and characterize super-Earths. 20% of time will be open to community use. Duration: 3.5 (+ 1.5 goal) years |
| JWST | Commissioned on 25, December 2021 | Ongoing | 1 | 0 | To study atmospheres of known exoplanets and find some Jupiter-sized exoplanets Duration: 5 (+ 5 goal) years |
| | | | 2,757 (3,941 Total) | 3,914 | |

### Planned

| Name | Launch date | Mission objectives | Duration |
| ARIEL | 2029 (Ariane 62) | Observe exoplanets using the transit method, study and characterise the planets' chemical composition and thermal structures | 4 years |
| RST | 2026 | To search for and study exoplanets while studying dark matter. It is expected to find about 2,500 planets. | 6 years |
| PLATO | 2026 (Ariane 62) | To search for and characterize rocky planets around stars like our own. | 4 (+4 goal) years |
| TOLIMAN | 2026 | Detect exoplanets in Alpha Centauri using astrometry. | 3 years |

### Proposed

* EXCEDE
* FINESSE
* Origins
* HabEx
* LUVOIR
* New Worlds Mission
* PEGASE

### Canceled

* Darwin
* EChO
* Eddington
* Space Interferometry Mission
* Terrestrial Planet Finder