| $10 Million NSF Grant to Fund "National Virtual Observatory" (2001-35-1119).jpg | ILLUSTRATION: Greg T. Bacon STScI-AVL), J Gitlin STScI-AVL) SCIENCE CONTACT: A Szalay (JH… | Public domain |
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| C-BASS North 03.jpg | Photograph by Mike Peel ( www.mikepeel.net ). | CC BY-SA 4.0 |
| C-BASS South at Klerefontein.jpg | Photograph by Mike Peel ( www.mikepeel.net ). | CC BY-SA 4.0 |
| C8154ft6-FILEID-1.2.43.jpg | Unknown author Unknown author | Public domain |
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| CALET and KIBO.JPG | NASA | Public domain |
| Calf of Man Bird Observatory - geograph.org.uk - 25536.jpg | Andy Stephenson | CC BY-SA 2.0 |
| Caltech-CSO-telescope (fix).jpg | User:Avriette at en.wikipedia ; modified by User:Huntster . | CC BY-SA 3.0 |
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| Canberra Deep Dish Communications Complex - GPN-2000-000502.jpg | NASA | Public domain |
| Carkeek Observatory MRD 04.jpg | Mike Dickison | CC BY 4.0 |
| Carnegie telescope dome, Aug 2019.jpg | Thomson200 | CC0 |
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| Cascades Volcano Observatory on Open Day 2005 (USGS) cropped.JPG | Cascades_Volcano_Observatory_on_Open_Day_2005_(USGS).jpg : Unknown (taken by or for the U… | Public domain |
| CasleoNuit.jpg | Cédric Foellmi | CC BY-SA 3.0 |
| Cassegrain telescope-CnAM 1850-IMG 5443-gradient.jpg | Rama | CC BY-SA 3.0 fr |
| Castello Basevi (Foto von Isabella Taxacher).jpg | European School of Trieste | CC BY-SA 3.0 |
| CastineME Observatory.jpg | Magicpiano | CC BY-SA 3.0 |
| Catalina Sky Survey Observatory at Dusk.jpg | Daniel Oberhaus | CC BY-SA 4.0 |
| Caussols -348.jpg | MOSSOT | CC BY 3.0 |
| Cawthron Atkinson Observatory, Nelson.jpg | Mike Dickison | CC BY 4.0 |
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| Chajnantor2004.jpg | Ricardo Bustos | Public domain |
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| Chandra X-ray Observatory spacecraft model.png | NASA | Public domain |
| Chanquillo Fortaleza (remains).jpg | AgainErick | CC BY-SA 3.0 |
| Chara-2000-09-15.JPG | Gerard T. van Belle | Public domain |
| Charade -123 answer (381578296).jpg | Andy / Andrew Fogg from near Cambridge, UK | CC BY 2.0 |
| CHEOPS spacecraft.jpg | European Space Agency | CC BY-SA 3.0 igo |
| Chilbolton Observatory 3GHz Radar Antenna.jpg | The original uploader was Drichards2 at English Wikipedia . | CC BY-SA 3.0 |
| Children building an E-ELT mirror.jpg | ESO/Sergio Dalle Ave & Roberto Ragazzoni (INAF-OAPD) | CC BY 4.0 |
| CHIPSAT 2.jpg | NASA | Public domain |
| Chérubin binocular telescope-CnAM 12811-IMG 6439-black.jpg | Rama | CC BY-SA 3.0 fr |
| Cincinnati Observatory.JPG | Analogue Kid at en.wikipedia | CC BY 2.5 |
| CircularObservatory.jpg | MarcoPacini | CC BY-SA 4.0 |
| City Dome - City Observatory of Edinburgh - 01.jpg | Carlos Delgado | CC BY-SA 3.0 |
| Civil Dora Observatory.jpg | 책읽는달팽 | CC BY-SA 3.0 |
| Clarence-jones-observatory-tn1.jpg | Brian Stansberry | CC BY 3.0 |
| Clark dome.jpg | en:User:Pretzelpaws | CC BY-SA 3.0 |
| Clark Telescope, Lowell Observatory - Flickr - brewbooks (1).jpg | brewbooks from near Seattle, USA | CC BY-SA 2.0 |
| Class of 1951 Observatory, Vassar College, June 2026 2.jpg | Collin Knopp-Schwyn | CC BY 4.0 |
| CLASS telescope 2019-09-20.jpg | Matthew Petroff | CC BY-SA 4.0 |
| Cloudcroft Observatory.jpg | NASA Orbital Debris Program Office | Public domain |
| Cmglee AMI Large Array telescope.jpg | Cmglee | CC BY-SA 3.0 |
| Cmglee Cambridge MRAO 4C Array.jpg | Cmglee | CC BY-SA 3.0 |
| Cmglee Cambridge MRAO CAT.jpg | Cmglee | CC BY-SA 3.0 |
| Cmglee Cambridge MRAO CLFST.jpg | Cmglee | CC BY-SA 3.0 |
| Cmglee Cambridge MRAO COAST bunker.jpg | Cmglee | CC BY-SA 3.0 |
| Cmglee Cambridge MRAO IPS Array.jpg | Cmglee | CC BY-SA 3.0 |
| Cmglee Cambridge MRAO MERLIN.jpg | Cmglee | CC BY-SA 3.0 |
| Coats Observatory - geograph.org.uk - 386195.jpg | Thomas Nugent | CC BY-SA 2.0 |
| Collmbergobservatorium.JPG | Jwaller | CC BY-SA 3.0 |
| Colonial Time Service Observatory.jpg | Canterbury Times | Public domain |
| Conradobservatorium2.jpg | ZAMG-Mitarbeiter | CC BY-SA 3.0 |
| Corfu Observatory Rotating Dome.jpg | Unknown | Public domain |
| Coriolis satellite.jpg | NASA | Public domain |
| Cornell - A. C. Barnes Observatory.jpg | Unknown author | Public domain |
| Coronas-photon.png | Кочемасов Алексей | CC0 |
| COROT integration.jpg | Blue straggler | CC BY-SA 3.0 |
| Cosb photo.gif | NASA | Public domain |
| Cosmic Background Explorer spacecraft model.png | NASA | Public domain |
| Cosmic Background Imager.jpeg | Photo taken by: Ricardo Bustos. File originally uploaded to en.wikipedia by Sheliak (Tran… | Attribution |
| Coudé Auxiliary Telescope, Aug 2019.jpg | Thomson200 | CC0 |
| Coupole et palmier.JPG | Brucegendre | CC BY-SA 4.0 |
| Courtyard at Observatory of Man Singh.jpg | Nandanupadhyay | CC BY-SA 3.0 |
| CPC1100wlaser.jpg | Brasted | CC BY 3.0 |
| CRAAG - Bouzareah.jpg | Original uploader was Mehnimalik at fr.wikipedia | CC BY-SA 3.0 |
| Crago Observatory Bowen Mountain.jpg | Old Bart | CC BY-SA 4.0 |
| Crater Lake August 2013 - exterior of Sinnot.JPG | M.O. Stevens | CC BY-SA 3.0 |
| CRISTA-SPAS-1.jpg | NASA | Public domain |
| Cristin house, from the farmyard - geograph.org.uk - 904190.jpg | David Medcalf | CC BY-SA 2.0 |
| Crohamhurst Observatory (former) (2007).jpg | Heritage branch staff | CC BY 3.0 |
| Cronyn observatory building and Gibbs heliochronometer (sundial).jpg | Avocet7 | CC BY-SA 4.0 |
| Crossley composite.jpg | Gatohaus at English Wikipedia | Public domain |
| Crow Observatory Dome.jpg | Lmbstl | Public domain |
| CSIRO ScienceImage 11144 Parkes Radio Telescope.jpg | division, CSIRO | CC BY 3.0 |
| CSIRO ScienceImage 11145 The 22m Mopra radio telescope.jpg | division, CSIRO | CC BY 3.0 |
| CSIRO ScienceImage 11482 An artists impression of one of the two new antennas to be constructed at the Canberra Deep Space Communications Complex CDSCC.jpg | CDSCC/NASA, CSIRO | CC BY 3.0 |
| CSIRO ScienceImage 2161 Close up of a radio astronomy telescope with several more in the background.jpg | , CSIRO | CC BY 3.0 |
| CSIRO ScienceImage 3881 Five Antennas at Narrabri - restoration1.jpg | John Masterson, CSIRO Restoration by Bammesk | CC BY 3.0 |
| CSIRO ScienceImage 7249 The Radio Telescope at Parkes.jpg | David McClenaghan, CSIRO | CC BY 3.0 |
| CSST想象图.jpg | 中国科学院长春光学精密机械与物理研究所 | CC BY 4.0 |
| Cupula LNA 1.6m.jpg | L'Astorina | GFDL |
| Custer Astronomical Observatory - Southold New York USA - Dome and Radio Telescope.jpg | Astroval1 | CC BY-SA 4.0 |
| CWU Observatory.jpg | Lethargilistic | CC0 |
| CWU-Lind Observatory.jpg | Lethargilistic | CC0 |
| Cúpula del Observatorio del IPA desde la calle Venezuela.JPG | Queeny29 | CC BY-SA 4.0 |
| D-5-64-000-1615 Regiomontanusweg 1 Nürnberg 20241213 0003.jpg | Tilman2007 | CC BY-SA 4.0 |
| Darnhall telescope 6.jpg | Mike Peel ; Jodrell Bank Centre for Astrophysics, University of Manchester. | CC BY-SA 4.0 |
| David Cole Observatory.jpg | Michael Gyra | CC BY-SA 3.0 |
| Daya Bay Nuclear Power Plant.jpg | No machine-readable author provided. Level plus~commonswiki assumed (based on copyright c… | Public domain |
| Deep Space Station 46, 2.JPG | Mitch Ames | CC BY-SA 4.0 |
| Defford telescope 7.jpg | Mike Peel ; Jodrell Bank Centre for Astrophysics, University of Manchester. | CC BY-SA 4.0 |
| Demmin Wasserturm 2011-09-12.JPG | Erell | CC BY-SA 3.0 |
| Dengfeng Observatory.jpg | takwing.kwong | CC BY-SA 2.0 |
| Detroit Observatory, Observatory Street and Ann Street, University of Michigan, Ann Arbor, MI - 54381355654.jpg | w_lemay | CC BY-SA 2.0 |
| Die Gartenlaube (1871) b 788.jpg | various | Public domain |
| Discovery rendezvous with CRISTA-SPAS II (STS85-E-5104) (cropped).jpg | NASA | Public domain |
| DJI 0017 LR result.jpg | GGiobbi | CC BY-SA 4.0 |
| Doane College Boswell Observatory 1.JPG | Ammodramus | CC0 |
| Dome of the 3.5m WIYN telescope.jpg | Jörg Weingrill from Potsdam, Germany | CC BY 2.0 |
| Dominion Observatory, Ottawa, by Wilder.jpg | Lezumbalaberenjena at English Wikipedia | Public domain |
| Dominion Observatory.jpg | russellstreet | CC BY-SA 2.0 |
| Dominion Radio Astrophysical Observatory largest dish.jpg | Darren Kirby from Penticton, BC, Canada | CC BY-SA 2.0 |
| Doridis Telescope on September 20, 2021.jpg | George E. Koronaios | CC BY-SA 4.0 |
| Downtown Mishima 20120910.jpg | Batholith (Wikimedia Commons) Batholith (Wikipedia) | Public domain |
| Dr. Nancy Currie-Gregg Observatory at Enid High School.jpg | Soonerson921 | CC BY-SA 4.0 |
| DRAO main building and dish.JPG | Jjnishiyama at English Wikipedia | CC BY 2.5 |
| DRAO solar flux.JPG | Jjnishiyama at English Wikipedia | CC BY 2.5 |
| DrAPhilipsObservatorium.jpg | Lempkesfabriek | Public domain |
| Drebach - observatory 1 (aka).jpg | André Karwath aka Aka | CC BY-SA 2.5 |
| Dscovr.jpg | Unknown author | Public domain |
| DSN Madrid2.jpg | NASA - Jet Propulsion Laboratory | Public domain |
| DSS51 front.jpg | Martinvl | CC BY-SA 4.0 |
| Du Pont Las Campanas.jpg | Krzysztof Ulaczyk (more work on Wikimedia Commons: Kszulogaleria ) | CC BY-SA 4.0 |
| Dudley Observatory.jpg | Unknown author Unknown author | Public domain |
| Dunlap Observatory.jpg | John H. Martin. This image cropped from original image and saved in jpeg format with comp… | CC BY 2.5 |
| Dunsink Observatory - geograph.org.uk - 510911.jpg | JP | CC BY-SA 2.0 |
| Durham Observatory.jpg | Teach46 at English Wikipedia | CC BY 3.0 |
| Dutch Open Telescope dome closed.jpg | 2pem | CC BY-SA 3.0 |
| Dwingeloo Planetron15.JPG | Rene1971 | CC BY-SA 3.0 |
| E152 telescope by Zdeněk Bardon 1.jpg | Zdeněk Bardon | CC BY-SA 4.0 |
| Earlham College Observatory, southeastern angle.jpg | Nyttend | Public domain |
| East Sayan Mountains. The Siberian Solar Radio Telescope..jpg | Sergey Gabdurakhmanov | CC BY 2.0 |
| Eclipse 4-12-2002 Woomera.jpg | Kevin at English Wikipedia | CC BY-SA 3.0 |
| Eclipse Superluna (Luna de Sangre) desde el Observatorio Astronómico de Temisas Agüimes Gran Canaria (21194774104).jpg | El Coleccionista de Instantes Fotografía & Video | CC BY-SA 2.0 |
| EDGES antenna.JPG | Suzyj | CC BY-SA 4.0 |
| Egapark Erfurt 2026-10-16 031 Sternwarteturm.jpg | Ousw | CC0 |
| Eger – Lyceum 03.jpg | User:Pasztilla aka Attila Terbócs | CC BY 3.0 |
| Ehrensberger-Sternwarte Traunstein.jpg | Cloudblaster | CC0 |
| Eidgenössische Sternwarte (ETH Zürich) 2011-08-06 18-08-38 ShiftN.jpg | Roland zh | CC BY-SA 3.0 |
| Eileen M. Collins Observatory.JPG | DanielPenfield | CC BY-SA 3.0 |
| Eilenburg Mansberg 18 Sternwarte-01.jpg | Radler59 ( talk ) | CC BY 4.0 |
| Einstein Probe illustration.png | China News Service | CC BY 4.0 |
| Elfordstown Earthstation in 2013.jpg | TopToniko | CC BY-SA 4.0 |
| Elgin Observatory.JPG | Smallbones | Public domain |
| Elginfield Observatory - Elginfield, ON.jpg | JFVoll | CC BY-SA 4.0 |
| Embry-Riddle Observatory.jpg | Michelle Blake | CC BY 4.0 |
| Empire-fall.jpg | Pyotruk | CC BY-SA 4.0 |
| Encykorea-창경궁 관천대.jpg | Academy of Korean Studies·Kim Gwang-seop | KOGL Type 1 |
| Engelgardt observatory.JPG | http://ru.wikipedia.org/wiki/Участник:Winer | CC BY-SA 3.0 |
| Ennepetal Voerde - Volkssternwarte 02 ies.jpg | Frank Vincentz | CC BY-SA 3.0 |
| Entrance of IUCAA.jpg | DesiBoy101 | CC BY 4.0 |
| Erbil Observatory.jpg | Sarchia Khursheed | CC BY-SA 4.0 |
| Erraid Observatory.jpg | W. L. Tarbert | Public domain |
| Eskdalemuir Observatory - geograph.org.uk - 207957.jpg | Kevin Rae | CC BY-SA 2.0 |
| ESO Headquarters from above (170818049-cc).jpg | Ernst A. Graf/ESO | CC BY 4.0 |
| Eso9855a.jpg | Credit: ESO | CC BY 3.0 |
| Esopia00046teles.jpg | Credit: ESO/H.H.Heyer | CC BY 3.0 |
| Esopia00052teles.jpg | ESO | CC BY 4.0 |
| Estació sísmca Garraf - P1060771.jpg | Pere López Brosa | CC BY-SA 4.0 |
| Euclid looking into the Universe ESA24697255 (cropped).jpg | European Space Agency | CC BY-SA 3.0 igo |
| EUO T40T35.JPG | Kadriyakut | CC BY-SA 3.0 |
| EUVE Photo.gif | Unknown author | Public domain |
| Evryscope South.jpg | Htcorbett4 | CC BY-SA 4.0 |
| Exosat.jpg | NASA | Public domain |
| Explorer-53 SAS-C.jpg | NASA | Public domain |
| Exploring the digital Universe with Europe's Astrophysical Virtual Observatory (heic0115a).jpg | ESO , ESA , ASTROGRID, CDS (CNRS/ULP), TERAPIX (CNRS) and Jodrell Bank Observatory | Public domain |
| Exterior of observatory in Třebíč, Třebíč District.jpg | Frettie | CC BY 3.0 |
| FACTmoon.JPG | Jens Björn Buß ( Jebuss ) | CC BY-SA 3.0 |
| Fair Isle Bird Observatory reopened June 2010 - geograph.org.uk - 1999001.jpg | Julian Paren | CC BY-SA 2.0 |
| Fajadadiagram.JPG | Nationalparks at English Wikipedia | Public domain |
| Falera Mirasteilas.jpg | Adrian Michael | CC BY-SA 3.0 |
| Faulkes Telescope South 2016 10 01.jpg | Gronk Oz | CC BY-SA 4.0 |
| Faulkes telescope-Science City-Maui (29605281058).jpg | Forest and Kim Starr | CC BY 3.0 us |
| FCO 2021.jpg | MarsFCO | CC BY-SA 4.0 |
| Fermi Gamma-ray Space Telescope spacecraft model.png | NASA | Public domain |
| Fernbank-14.jpg | Eoghanacht | Public domain |
| FI-Tampere-20131003 190530 HDR cropped.JPG | Brylie Oxley | CC0 |
| Folding achromatic telescope-CnAM 12808-IMG 6818.JPG | Rama | CC BY-SA 3.0 fr |
| Folding pocket spyglass by Fraser (Science Museum).jpg | Science Museum Photo Studio | CC BY 4.0 |
| FoothillObservatory wbIMG 1299.jpg | Elf | CC BY-SA 3.0 |
| Former Geological Survey of Canada Building.JPG | Skeezix1000 | CC BY-SA 3.0 |
| Fotooal.jpg | OAL | CC BY-SA 3.0 |
| Fountain Hills, Arizona.jpg | Bernard Gagnon | CC BY-SA 3.0 |
| Frankfurt - Physikalischer Verein (Observatorium außen).jpg | Dr. Thomas Liptak | CC BY-SA 4.0 |
| Fremont Peak Observatory viewed from Fremont Peak.jpg | Thomson200 | CC0 |
| Front view of Weston Observatory (Boston College).jpg | WestonObservatory | CC BY-SA 3.0 |
| FuertesObservatoryCornell.jpg | AlphaOrionis42 | CC BY-SA 4.0 |
| Funicular Observatorio 1873.jpg | Palomilla Apocatastásica | CC BY 4.0 |
| FUSE prelaunch crop.jpg | NASA, Image ID: KSC-99PP-0496 | Public domain |
| Gaithersburg latitude observatory 1.jpg | BobDrzyzgula | Public domain |
| GALEX spacecraft model.png | NASA | Public domain |
| Galilean telescope-CnAM 8606-IMG 6433-black.jpg | Rama | CC BY-SA 3.0 fr |
| Galileum 2019 03.jpg | Nicola | CC BY-SA 4.0 |
| Gallium–Germanium Neutrino Telescope main room - 2010-07-19 - DSC 0764.jpg | Konstantin Malanchev | CC BY 2.0 |
| Gebäude in Altburg 15.jpg | Giftzwerg 88 | CC BY-SA 3.0 |
| Gedung TeleskopTimau.jpg | DaengAmmang | CC0 |
| GEM telescope, Cachoeira Paulista 2017 06.jpg | Photograph by Mike Peel ( www.mikepeel.net ). | CC BY-SA 4.0 |
| Gemini Observatory at sunset.jpg | Mailseth | CC BY-SA 3.0 |
| Gemini South 01.jpg | Denys (fr) | CC BY 3.0 |
| GEMS spacecraft model 1.png | NASA | Public domain |
| Geneve old Observatory 1830.jpg | Alfred Gautier | Public domain |
| GEO 1.jpg | Spacelabs.ca | CC BY-SA 4.0 |
| Geodetic Observatory Wettzell.jpg | H. Raab ( User:Vesta ) | CC BY-SA 3.0 |
| George R. Aggasiz Station, Harvard - 1.jpg | Daderot | Public domain |
| Georgetown University Observatory yard.jpg | Daderot | Public domain |
| Georgia College Observatory.jpg | Clifflandis | CC0 |
| Gerlitzen, Sonnenobservatorium - Turm4.jpg | Neithan90 | Public domain |
| Ghana satellite earth station.jpg | Bryte507 | CC BY-SA 4.0 |
| Gifford Observatory entrance.jpg | Paul Moss Photographer Astronomer | Public domain |
| Gifu-Tenmondai01.JPG | Monami | CC BY-SA 3.0 |
| Girawali Observatory.jpg | SPat | CC BY-SA 3.0 |
| Givatayim-Observatory.jpg | Orion Avidan | Public domain |
| Glehni vaatetorn 1.jpg | Epp | CC BY-SA 3.0 ee |
| Glen D. Riley Observatory.jpg | Betacyg at en.wikipedia | CC BY-SA 3.0 |
| Gnosca.JPG | Gattoarturo | CC BY-SA 3.0 |
| GNS Science.jpg | IdiotSavant | CC BY-SA 3.0 |
| Goethe Link Observatory.jpg | Hammersoft | CC BY-SA 4.0 |
| Goldendale Observatory State Park - Washington.jpg | Ian Poellet | CC BY-SA 3.0 |
| Goldstone Apple Valley Radio Telescope (GAVRT) Solar Patrol (SVS14530 - 1).jpg | NASA's Scientific Visualization Studio - Beth Anthony | Public domain |
| Goldstone Deep Space Network.jpg | Unknown author | Public domain |
| Goode Solar Telescope.jpg | Lakesideview | CC BY-SA 4.0 |
| Goodsell Observatory.jpg | McGhiever | CC BY-SA 4.0 |
| GornegratTelescope.JPG | Egghead06 ( talk ) | Public domain |
| Gornergrat HPS DSC03970 2 crop.jpg | Hapesoft | CC BY-SA 3.0 |
| Gornergrat in Wallis, Switzerland, 2012 August.jpg | Ximonic (Simo Räsänen) | CC BY-SA 4.0 |
| Gotha-Galbergweg 12-Rohrbach-Sternwarte-CTH.JPG | CTHOE | CC BY-SA 3.0 |
| GOTO North at sunset.jpg | Whyistheskyblue1 | CC BY-SA 4.0 |
| Gotoh onidake-observatory-2015-04-22.png | Nami-ja | CC BY-SA 4.0 |
| Gouribidanur radio observatory.jpg | L. Shyamal | CC BY-SA 3.0 |
| GrahamLoftusRuthCrispCarter.jpg | Paul Moss | Public domain |
| Grakovo01.JPG | Oleksiy.golubov | CC BY-SA 4.0 |
| Granat.gif | Unknown author | Public domain |
| Grande Lunette de l'Observatoire de Meudon.jpg | Serge Golovanow | CC BY-SA 3.0 |
| GranTeCan Mosaic.jpg | H. Raab ( User:Vesta ) | CC BY-SA 3.0 |
| Great Blue Hill Weather Station Milton MA 03.jpg | Jameslwoodward | CC BY-SA 3.0 |
| Great Ex Telescope Telescope.jpg | Unknown author Unknown author | Public domain |
| Great Melbourne Telescope 1869.JPG | Museum Victoria, Australia | Public domain |
| Great Refractor.jpg | Antoine Sonrel | Public domain |
| Green Bank 140 Foot Telescope 04.jpg | Z22 | CC BY-SA 4.0 |
| Green Bank Observatory 40 foot telescope.jpg | B. Saxon, NRAO/AUI/NSF | CC BY 3.0 |
| Green Bank Telescope NRAO (cropped).jpg | NRAO/AUI/NSF | CC BY 4.0 |
| Green Banks - 45 ft Telescope 1.jpg | Jarek Tuszyński | CC BY-SA 3.0 |
| Green Banks - GBT 4.jpg | Jarek Tuszyński | CC BY-SA 3.0 |
| Green Banks - Grote Reber Radio Telescope.jpg | Jarek Tuszyński | CC BY-SA 3.0 |
| Green Banks - Jansky Antena.jpg | Jarek Tuszyński | CC BY-SA 3.0 |
| Green Point Observatory from West.JPG | Gronk Oz | CC BY-SA 3.0 |
| Green Templeton College.jpg | Cwawebber | CC BY 3.0 |
| GreenhillObservatory.jpg | Aacole42 | CC BY-SA 4.0 |
| Griffith Observatory 2012 12.jpg | Photograph by Mike Peel ( www.mikepeel.net ). | CC BY-SA 4.0 |
| Griffith Observatory on the south-facing slope of Mount Hollywood in L.A.'s Griffith Park (LC-DIG-highsm- 22255).tif | Carol M. Highsmith | Public domain |
| GRIS fall95(93-2).gif | NASA | Public domain |
| GroundBIRD 2019 001.jpg | Photograph by Mike Peel ( www.mikepeel.net ). | CC BY-SA 4.0 |
| GSST (PMM).jpg | Research team | CC BY 4.0 |
| GST dome.jpg | Pgoode1943 | CC BY-SA 4.0 |
| GTM imagen.JPG | Luyten | CC BY-SA 3.0 |
| Gunma Astronomical Observatory.jpg | 禁樹なずな | CC BY-SA 3.0 |
| Gurley Observatory.jpg | Wolfgang8741 | CC BY-SA 4.0 |
| GUSTO telescope.jpg | Explorers Program, NASA. | Public domain |
| Göttingen - Sternwarte.jpg | Johannes Poets | CC BY-SA 4.0 |
| Haggart Observatory Clackamas Community College Oregon City Oregon.jpg | Tedder | CC BY 3.0 |
| Hakin observatory back view - geograph.org.uk - 369416.jpg | ceridwen | CC BY-SA 2.0 |
| Haldde.jpg | HenrikJ | CC BY 3.0 |
| Hale Solar Laboratory 2008.jpg | Shinku Hisaki ( talk ) | CC BY 3.0 |
| Haleakala Observatory 2017.jpg | Ekrem Canli | CC BY-SA 4.0 |
| Haleakala Observatory Maui (45015823284).jpg | dronepicr | CC BY 2.0 |
| Hamamatsu Astronomical Observatory.jpg | 八幡鏡太郎 | CC BY 4.0 |
| Hamburg-Altona Palmaille.jpg | Unknown author Unknown author | Public domain |
| Hamilton Astronomical Observatory - New Zealand.jpg | Rjcroy | CC BY-SA 4.0 |
| Hampstead Observatory 1910.png | Unknown author Unknown author | Public domain |
| Hanging Rock Raptor Observatory (36707099214).jpg | David Lee from Redmond, WA, USA | CC BY 2.0 |