Euclid. I. Overview of the Euclid mission

Euclid Collaboration; Mellier, Y.; Abdurro'uf; Acevedo Barroso, J. A.; Achúcarro, A.; Adamek, J.; Adam, R.; Addison, G. E.; Aghanim, N.; Aguena, M.; Ajani, V.; Akrami, Y.; Al-Bahlawan, A.; Alavi, A.; Albuquerque, I. S.; Alestas, G.; Alguero, G.; Allaoui, A.; Allen, S. W.; Allevato, V.; Alonso-Tetilla, A. V.; Altieri, B.; Alvarez-Candal, A.; Alvi, S.; Amara, A.; Amendola, L.; Amiaux, J.; Andika, I. T.; Andreon, S.; Andrews, A.; Angora, G.; Angulo, R. E.; Annibali, F.; Anselmi, A.; Anselmi, S.; Arcari, S.; Archidiacono, M.; Aricò, G.; Arnaud, M.; Arnouts, S.; Asgari, M.; Asorey, J.; Atayde, L.; Atek, H.; Atrio-Barandela, F.; Aubert, M.; Aubourg, E.; Auphan, T.; Auricchio, N.; Aussel, B.; Aussel, H.; Avelino, P. P.; Avgoustidis, A.; Avila, S.; Awan, S.; Azzollini, R.; Baccigalupi, C.; Bachelet, E.; Bacon, D.; Baes, M.; Bagley, M. B.; Bahr-Kalus, B.; Balaguera-Antolinez, A.; Balbinot, E.; Balcells, M.; Baldi, M.; Baldry, I.; Balestra, A.; Ballardini, M.; Ballester, O.; Balogh, M.; Bañados, E.; Barbier, R.; Bardelli, S.; Baron, M.; Barreiro, T.; Barrena, R.; Barriere, J.-C.; Barros, B. J.; Barthelemy, A.; Bartolo, N.; Basset, A.; Battaglia, P.; Battisti, A. J.; Baugh, C. M.; Baumont, L.; Bazzanini, L.; Beaulieu, J.-P.; Beckmann, V.; Belikov, A. N.; Bel, J.; Bellagamba, F.; Bella, M.; Bellini, E.; Benabed, K.; Bender, R.; Benevento, G.; Bennett, C. L.; Benson, K.; Bergamini, P.; Bermejo-Climent, J. R.; Bernardeau, F.; Bertacca, D.; Berthe, M.; Berthier, J.; Bethermin, M.; Beutler, F.; Bevillon, C.; Bhargava, S.; Bhatawdekar, R.; Bianchi, D.; Bisigello, L.; Biviano, A.; Blake, R. P.; Blanchard, A.; Blazek, J.; Blot, L.; Bosco, A.; Bodendorf, C.; Boenke, T.; Böhringer, H.; Boldrini, P.; Bolzonella, M.; Bonchi, A.; Bonici, M.; Bonino, D.; Bonino, L.; Bonvin, C.; Bon, W.; Booth, J. T.; Borgani, S.; Borlaff, A. S.; Borsato, E.; Bosco, A.; Bose, B.; Botticella, M. T.; Boucaud, A.; Bouche, F.; Boucher, J. S.; Boutigny, D.; Bouvard, T.; Bouwens, R.; Bouy, H.; Bowler, R. A. A.; Bozza, V.; Bozzo, E.; Branchini, E.; Brando, G.; Brau-Nogue, S.; Brekke, P.; Bremer, M. N.; Brescia, M.; Breton, M.-A.; Brinchmann, J.; Brinckmann, T.; Brockley-Blatt, C.; Brodwin, M.; Brouard, L.; Brown, M. L.; Bruton, S.; Bucko, J.; Buddelmeijer, H.; Buenadicha, G.; Buitrago, F.; Burger, P.; Burigana, C.; Busillo, V.; Busonero, D.; Cabanac, R.; Cabayol-Garcia, L.; Cagliari, M. S.; Caillat, A.; Caillat, L.; Calabrese, M.; Calabro, A.; Calderone, G.; Calura, F.; Camacho Quevedo, B.; Camera, S.; Campos, L.; Cañas-Herrera, G.; Candini, G. P.; Cantiello, M.; Capobianco, V.; Cappellaro, E.; Cappelluti, N.; Cappi, A.; Caputi, K. I.; Cara, C.; Carbone, C.; Cardone, V. F.; Carella, E.; Carlberg, R. G.; Carle, M.; Carminati, L.; Caro, F.; Carrasco, J. M.; Carretero, J.; Carrilho, P.; Carron Duque, J.; Carry, B.; Carvalho, A.; Carvalho, C. S.; Casas, R.; Casas, S.; Casenove, P.; Casey, C. M.; Cassata, P.; Castander, F. J.; Castelao, D.; Castellano, M.; Castiblanco, L.; Castignani, G.; Castro, T.; Cavet, C.; Cavuoti, S.; Chabaud, P.-Y.; Chambers, K. C.; Charles, Y.; Charlot, S.; Chartab, N.; Chary, R.; Chaumeil, F.; Cho, H.; Chon, G.; Ciancetta, E.; Ciliegi, P.; Cimatti, A.; Cimino, M.; Cioni, M.-R. L.; Claydon, R.; Cleland, C.; Clément, B.; Clements, D. L.; Clerc, N.; Clesse, S.; Codis, S.; Cogato, F.; Colbert, J.; Cole, R. E.; Coles, P.; Collett, T. E.; Collins, R. S.; Colodro-Conde, C.; Colombo, C.; Combes, F.; Conforti, V.; Congedo, G.; Conseil, S.; Conselice, C. J.; Contarini, S.; Contini, T.; Conversi, L.; Cooray, A. R.; Copin, Y.; Corasaniti, P.-S.; Corcho-Caballero, P.; Corcione, L.; Cordes, O.; Corpace, O.; Correnti, M.; Costanzi, M.; Costille, A.; Courbin, F.; Courcoult Mifsud, L.; Courtois, H. M.; Cousinou, M.-C.; Covone, G.; Cowell, T.; Cragg, C.; Cresci, G.; Cristiani, S.; Crocce, M.; Cropper, M.; Crouzet, P. E.; Csizi, B.; Cuby, J.-G.; Cucchetti, E.; Cucciati, O.; Cuillandre, J.-C.; Cunha, P. A. C.; Cuozzo, V.; Daddi, E.; D'Addona, M.; Dafonte, C.; Dagoneau, N.; Dalessandro, E.; Dalton, G. B.; D'Amico, G.; Dannerbauer, H.; Danto, P.; Das, I.; Da Silva, A.; da Silva, R.; d'Assignies Doumerg, W.; Daste, G.; Davies, J. E.; Davini, S.; Dayal, P.; de Boer, T.; Decarli, R.; De Caro, B.; Degaudenzi, H.; Degni, G.; de Jong, J. T. A.; de la Bella, L. F.; de la Torre, S.; Delhaise, F.; Delley, D.; Delucchi, G.; De Lucia, G.; Denniston, J.; De Paolis, F.; De Petris, M.; Derosa, A.; Desai, S.; Desjacques, V.; Despali, G.; Desprez, G.; De Vicente-Albendea, J.; Deville, Y.; Dias, J. D. F.; Díaz-Sánchez, A.; Diaz, J. J.; Di Domizio, S.; Diego, J. M.; Di Ferdinando, D.; Di Giorgio, A. M.; Dimauro, P.; Dinis, J.; Dolag, K.; Dolding, C.; Dole, H.; Domínguez Sánchez, H.; Doré, O.; Dournac, F.; Douspis, M.; Dreihahn, H.; Droge, B.; Dryer, B.; Dubath, F.; Duc, P.-A.; Ducret, F.; Duffy, C.; Dufresne, F.; Duncan, C. A. J.; Dupac, X.; Duret, V.; Durrer, R.; Durret, F.; Dusini, S.; Ealet, A.; Eggemeier, A.; Eisenhardt, P. R. M.; Elbaz, D.; Elkhashab, M. Y.; Ellien, A.; Endicott, J.; Enia, A.; Erben, T.; Escartin Vigo, J. A.; Escoffier, S.; Escudero Sanz, I.; Essert, J.; Ettori, S.; Ezziati, M.; Fabbian, G.; Fabricius, M.; Fang, Y.; Farina, A.; Farina, M.; Farinelli, R.; Farrens, S.; Faustini, F.; Feltre, A.; Ferguson, A. M. N.; Ferrando, P.; Ferrari, A. G.; Ferré-Mateu, A.; Ferreira, P. G.; Ferreras, I.; Ferrero, I.; Ferriol, S.; Ferruit, P.; Filleul, D.; Finelli, F.; Finkelstein, S. L.; Finoguenov, A.; Fiorini, B.; Flentge, F.; Focardi, P.; Fonseca, J.; Fontana, A.; Fontanot, F.; Fornari, F.; Fosalba, P.; Fossati, M.; Fotopoulou, S.; Fouchez, D.; Fourmanoit, N.; Frailis, M.; Fraix-Burnet, D.; Franceschi, E.; Franco, A.; Franzetti, P.; Freihoefer, J.; Frenk, C. S.; Frittoli, G.; Frugier, P.-A.; Frusciante, N.; Fumagalli, A.; Fumagalli, M.; Fumana, M.; Fu, Y.; Gabarra, L.; Galeotta, S.; Galluccio, L.; Ganga, K.; Gao, H.; García-Bellido, J.; Garcia, K.; Gardner, J. P.; Garilli, B.; Gaspar-Venancio, L.-M.; Gasparetto, T.; Gautard, V.; Gavazzi, R.; Gaztanaga, E.; Genolet, L.; Genova Santos, R.; Gentile, F.; George, K.; Gerbino, M.; Ghaffari, Z.; Giacomini, F.; Gianotti, F.; Gibb, G. P. S.; Gillard, W.; Gillis, B.; Ginolfi, M.; Giocoli, C.; Girardi, M.; Giri, S. K.; Goh, L. W. K.; Gómez-Alvarez, P.; Gonzalez-Perez, V.; Gonzalez, A. H.; Gonzalez, E. J.; Gonzalez, J. C.; Gouyou Beauchamps, S.; Gozaliasl, G.; Gracia-Carpio, J.; Grandis, S.; Granett, B. R.; Granvik, M.; Grazian, A.; Gregorio, A.; Grenet, C.; Grillo, C.; Grupp, F.; Gruppioni, C.; Gruppuso, A.; Guerbuez, C.; Guerrini, S.; Guidi, M.; Guillard, P.; Gutierrez, C. M.; Guttridge, P.; Guzzo, L.; Gwyn, S.; Haapala, J.; Haase, J.; Haddow, C. R.; Hailey, M.; Hall, A.; Hall, D.; Hamaus, N.; Haridasu, B. S.; Harnois-Déraps, J.; Harper, C.; Hartley, W. G.; Hasinger, G.; Hassani, F.; Hatch, N. A.; Haugan, S. V. H.; Häußler, B.; Heavens, A.; Heisenberg, L.; Helmi, A.; Helou, G.; Hemmati, S.; Henares, K.; Herent, O.; Hernández-Monteagudo, C.; Heuberger, T.; Hewett, P. C.; Heydenreich, S.; Hildebrandt, H.; Hirschmann, M.; Hjorth, J.; Hoar, J.; Hoekstra, H.; Holland, A. D.; Holliman, M. S.; Holmes, W.; Hook, I.; Horeau, B.; Hormuth, F.; Hornstrup, A.; Hosseini, S.; Hu, D.; Hudelot, P.; Hudson, M. J.; Huertas-Company, M.; Huff, E. M.; Hughes, A. C. N.; Humphrey, A.; Hunt, L. K.; Huynh, D. D.; Ibata, R.; Ichikawa, K.; Iglesias-Groth, S.; Ilbert, O.; Ilić, S.; Ingoglia, L.; Iodice, E.; Israel, H.; Israelsson, U. E.; Izzo, L.; Jablonka, P.; Jackson, N.; Jacobson, J.; Jafariyazani, M.; Jahnke, K.; Jain, B.; Jansen, H.; Jarvis, M. J.; Jasche, J.; Jauzac, M.; Jeffrey, N.; Jhabvala, M.; Jimenez-Teja, Y.; Jimenez Muñoz, A.; Joachimi, B.; Johansson, P. H.; Joudaki, S.; Jullo, E.; Kajava, J. J. E.; Kang, Y.; Kannawadi, A.; Kansal, V.; Karagiannis, D.; Kärcher, M.; Kashlinsky, A.; Kazandjian, M. V.; Keck, F.; Keihänen, E.; Kerins, E.; Kermiche, S.; Khalil, A.; Kiessling, A.; Kiiveri, K.; Kilbinger, M.; Kim, J.; King, R.; Kirkpatrick, C. C.; Kitching, T.; Kluge, M.; Knabenhans, M.; Knapen, J. H.; Knebe, A.; Kneib, J.-P.; Kohley, R.; Koopmans, L. V. E.; Koskinen, H.; Koulouridis, E.; Kou, R.; Kovács, A.; Kovačić, I.; Kowalczyk, A.; Koyama, K.; Kraljic, K.; Krause, O.; Kruk, S.; Kubik, B.; Kuchner, U.; Kuijken, K.; Kümmel, M.; Kunz, M.; Kurki-Suonio, H.; Lacasa, F.; Lacey, C. G.; La Franca, F.; Lagarde, N.; Lahav, O.; Laigle, C.; La Marca, A.; La Marle, O.; Lamine, B.; Lam, M. C.; Lançon, A.; Landt, H.; Langer, M.; Lapi, A.; Larcheveque, C.; Larsen, S. S.; Lattanzi, M.; Laudisio, F.; Laugier, D.; Laureijs, R.; Laurent, V.; Lavaux, G.; Lawrenson, A.; Lazanu, A.; Lazeyras, T.; Le Boulc'h, Q.; Le Brun, A. M. C.; Le Brun, V.; Leclercq, F.; Lee, S.; Le Graet, J.; Legrand, L.; Leirvik, K. N.; Le Jeune, M.; Lembo, M.; Le Mignant, D.; Lepinzan, M. D.; Lepori, F.; Le Reun, A.; Leroy, G.; Lesci, G. F.; Lesgourgues, J.; Leuzzi, L.; Levi, M. E.; Liaudat, T. I.; Libet, G.; Liebing, P.; Ligori, S.; Lilje, P. B.; Lin, C.-C.; Linde, D.; Linder, E.; Lindholm, V.; Linke, L.; Li, S.-S.; Liu, S. J.; Lloro, I.; Lobo, F. S. N.; Lodieu, N.; Lombardi, M.; Lombriser, L.; Lonare, P.; Longo, G.; López-Caniego, M.; Lopez Lopez, X.; Lorenzo Alvarez, J.; Loureiro, A.; Loveday, J.; Lusso, E.; Macias-Perez, J.; Maciaszek, T.; Maggio, G.; Magliocchetti, M.; Magnard, F.; Magnier, E. A.; Magro, A.; Mahler, G.; Mainetti, G.; Maino, D.; Maiorano, E.; Maiorano, E.; Malavasi, N.; Mamon, G. A.; Mancini, C.; Mandelbaum, R.; Manera, M.; Manjón-García, A.; Mannucci, F.; Mansutti, O.; Manteiga Outeiro, M.; Maoli, R.; Maraston, C.; Marcin, S.; Marcos-Arenal, P.; Margalef-Bentabol, B.; Marggraf, O.; Marinucci, D.; Marinucci, M.; Markovic, K.; Marleau, F. R.; Marpaud, J.; Martignac, J.; Martín-Fleitas, J.; Martin-Moruno, P.; Martin, E. L.; Martinelli, M.; Martinet, N.; Martin, H.; Martins, C. J. A. P.; Marulli, F.; Massari, D.; Massey, R.; Masters, D. C.; Matarrese, S.; Matsuoka, Y.; Matthew, S.; Maughan, B. J.; Mauri, N.; Maurin, L.; Maurogordato, S.; McCarthy, K.; McConnachie, A. W.; McCracken, H. J.; McDonald, I.; McEwen, J. D.; McPartland, C. J. R.; Medinaceli, E.; Mehta, V.; Mei, S.; Melchior, M.; Melin, J.-B.; Ménard, B.; Mendes, J.; Mendez-Abreu, J.; Meneghetti, M.; Mercurio, A.; Merlin, E.; Metcalf, R. B.; Meylan, G.; Migliaccio, M.; Mignoli, M.; Miller, L.; Miluzio, M.; Milvang-Jensen, B.; Mimoso, J. P.; Miquel, R.; Miyatake, H.; Mobasher, B.; Mohr, J. J.; Monaco, P.; Monguió, M.; Montoro, A.; Mora, A.; Moradinezhad Dizgah, A.; Moresco, M.; Moretti, C.; Morgante, G.; Morisset, N.; Moriya, T. J.; Morris, P. W.; Mortlock, D. J.; Moscardini, L.; Mota, D. F.; Mottet, S.; Moustakas, L. A.; Moutard, T.; Müller, T.; Munari, E.; Murphree, G.; Murray, C.; Murray, N.; Musi, P.; Nadathur, S.; Nagam, B. C.; Nagao, T.; Naidoo, K.; Nakajima, R.; Nally, C.; Natoli, P.; Navarro-Alsina, A.; Navarro Girones, D.; Neissner, C.; Nersesian, A.; Nesseris, S.; Nguyen-Kim, H. N.; Nicastro, L.; Nichol, R. C.; Nielbock, M.; Niemi, S.-M.; Nieto, S.; Nilsson, K.; Noller, J.; Norberg, P.; Nouri-Zonoz, A.; Ntelis, P.; Nucita, A. A.; Nugent, P.; Nunes, N. J.; Nutma, T.; Ocampo, I.; Odier, J.; Oesch, P. A.; Oguri, M.; Magalhaes Oliveira, D.; Onoue, M.; Oosterbroek, T.; Oppizzi, F.; Ordenovic, C.; Osato, K.; Pacaud, F.; Pace, F.; Padilla, C.; Paech, K.; Pagano, L.; Page, M. J.; Palazzi, E.; Paltani, S.; Pamuk, S.; Pandolfi, S.; Paoletti, D.; Paolillo, M.; Papaderos, P.; Pardede, K.; Parimbelli, G.; Parmar, A.; Partmann, C.; Pasian, F.; Passalacqua, F.; Paterson, K.; Patrizii, L.; Pattison, C.; Paulino-Afonso, A.; Paviot, R.; Peacock, J. A.; Pearce, F. R.; Pedersen, K.; Peel, A.; Peletier, R. F.; Pellejero Ibanez, M.; Pello, R.; Penny, M. T.; Percival, W. J.; Perez-Garrido, A.; Perotto, L.; Pettorino, V.; Pezzotta, A.; Pezzuto, S.; Philippon, A.; Pierre, M.; Piersanti, O.; Pietroni, M.; Piga, L.; Pilo, L.; Pires, S.; Pisani, A.; Pizzella, A.; Pizzuti, L.; Plana, C.; Polenta, G.; Pollack, J. E.; Poncet, M.; Pöntinen, M.; Pool, P.; Popa, L. A.; Popa, V.; Popp, J.; Porciani, C.; Porth, L.; Potter, D.; Poulain, M.; Pourtsidou, A.; Pozzetti, L.; Prandoni, I.; Pratt, G. W.; Prezelus, S.; Prieto, E.; Pugno, A.; Quai, S.; Quilley, L.; Racca, G. D.; Raccanelli, A.; Rácz, G.; Radinović, S.; Radovich, M.; Ragagnin, A.; Ragnit, U.; Raison, F.; Ramos-Chernenko, N.; Ranc, C.; Rasera, Y.; Raylet, N.; Rebolo, R.; Refregier, A.; Reimberg, P.; Reiprich, T. H.; Renk, F.; Renzi, A.; Retre, J.; Revaz, Y.; Reylé, C.; Reynolds, L.; Rhodes, J.; Ricci, F.; Ricci, M.; Riccio, G.; Ricken, S. O.; Rissanen, S.; Risso, I.; Rix, H.-W.; Robin, A. C.; Rocca-Volmerange, B.; Rocci, P.-F.; Rodenhuis, M.; Rodighiero, G.; Rodriguez Monroy, M.; Rollins, R. P.; Romanello, M.; Roman, J.; Romelli, E.; Romero-Gomez, M.; Roncarelli, M.; Rosati, P.; Rosset, C.; Rossetti, E.; Roster, W.; Rottgering, H. J. A.; Rozas-Fernández, A.; Ruane, K.; Rubino-Martin, J. A.; Rudolph, A.; Ruppin, F.; Rusholme, B.; Sacquegna, S.; Sáez-Casares, I.; Saga, S.; Saglia, R.; Sahlén, M.; Saifollahi, T.; Sakr, Z.; Salvalaggio, J.; Salvaterra, R.; Salvati, L.; Salvato, M.; Salvignol, J.-C.; Sánchez, A. G.; Sanchez, E.; Sanders, D. B.; Sapone, D.; Saponara, M.; Sarpa, E.; Sarron, F.; Sartori, S.; Sartoris, B.; Sassolas, B.; Sauniere, L.; Sauvage, M.; Sawicki, M.; Scaramella, R.; Scarlata, C.; Scharré, L.; Schaye, J.; Schewtschenko, J. A.; Schindler, J.-T.; Schinnerer, E.; Schirmer, M.; Schmidt, F.; Schmidt, F.; Schmidt, M.; Schneider, A.; Schneider, M.; Schneider, P.; Schöneberg, N.; Schrabback, T.; Schultheis, M.; Schulz, S.; Schuster, N.; Schwartz, J.; Sciotti, D.; Scodeggio, M.; Scognamiglio, D.; Scott, D.; Scottez, V.; Secroun, A.; Sefusatti, E.; Seidel, G.; Seiffert, M.; Sellentin, E.; Selwood, M.; Semboloni, E.; Sereno, M.; Serjeant, S.; Serrano, S.; Setnikar, G.; Shankar, F.; Sharples, R. M.; Short, A.; Shulevski, A.; Shuntov, M.; Sias, M.; Sikkema, G.; Silvestri, A.; Simon, P.; Sirignano, C.; Sirri, G.; Skottfelt, J.; Slezak, E.; Sluse, D.; Smith, G. P.; Smith, L. C.; Smith, R. E.; Smit, S. J. A.; Soldano, F.; Solheim, B. G. B.; Sorce, J. G.; Sorrenti, F.; Soubrie, E.; Spinoglio, L.; Spurio Mancini, A.; Stadel, J.; Stagnaro, L.; Stanco, L.; Stanford, S. A.; Starck, J.-L.; Stassi, P.; Steinwagner, J.; Stern, D.; Stone, C.; Strada, P.; Strafella, F.; Stramaccioni, D.; Surace, C.; Sureau, F.; Suyu, S. H.; Swindells, I.; Szafraniec, M.; Szapudi, I.; Taamoli, S.; Talia, M.; Tallada-Crespí, P.; Tanidis, K.; Tao, C.; Tarrío, P.; Tavagnacco, D.; Taylor, A. N.; Taylor, J. E.; Taylor, P. L.; Teixeira, E. M.; Tenti, M.; Teodoro Idiago, P.; Teplitz, H. I.; Tereno, I.; Tessore, N.; Testa, V.; Testera, G.; Tewes, M.; Teyssier, R.; Theret, N.; Thizy, C.; Thomas, P. D.; Toba, Y.; Toft, S.; Toledo-Moreo, R.; Tolstoy, E.; Tommasi, E.; Torbaniuk, O.; Torradeflot, F.; Tortora, C.; Tosi, S.; Tosti, S.; Trifoglio, M.; Troja, A.; Trombetti, T.; Tronconi, A.; Tsedrik, M.; Tsyganov, A.; Tucci, M.; Tutusaus, I.; Uhlemann, C.; Ulivi, L.; Urbano, M.; Vacher, L.; Vaillon, L.; Valageas, P.; Valdes, I.; Valentijn, E. A.; Valenziano, L.; Valieri, C.; Valiviita, J.; Van den Broeck, M.; Vassallo, T.; Vavrek, R.; Vega-Ferrero, J.; Venemans, B.; Venhola, A.; Ventura, S.; Verdoes Kleijn, G.; Vergani, D.; Verma, A.; Vernizzi, F.; Veropalumbo, A.; Verza, G.; Vescovi, C.; Vibert, D.; Viel, M.; Vielzeuf, P.; Viglione, C.; Viitanen, A.; Villaescusa-Navarro, F.; Vinciguerra, S.; Visticot, F.; Voggel, K.; von Wietersheim-Kramsta, M.; Vriend, W. J.; Wachter, S.; Walmsley, M.; Walth, G.; Walton, D. M.; Walton, N. A.; Wander, M.; Wang, L.; Wang, Y.; Weaver, J. R.; Weller, J.; Wetzstein, M.; Whalen, D. J.; Whittam, I. H.; Widmer, A.; Wiesmann, M.; Wilde, J.; Williams, O. R.; Winther, H.-A.; Wittje, A.; Wong, J. H. W.; Wright, A. H.; Yankelevich, V.; Yeung, H. W.; Yoon, M.; Youles, S.; Yung, L. Y. A.; Zacchei, A.; Zalesky, L.; Zamorani, G.; Zamorano Vitorelli, A.; Zanoni Marc, M.; Zennaro, M.; Zerbi, F. M.; Zinchenko, I. A.; Zoubian, J.; Zucca, E.; Zumalacarregui, M.

doi:10.1051/0004-6361/202450810

Published May 2025 | Version Published

Journal Article Open

Euclid. I. Overview of the Euclid mission

1. Institut d'Astrophysique de Paris
2. Sorbonne University
3. Johns Hopkins University
4. École Polytechnique Fédérale de Lausanne
5. Leiden University
6. University of the Basque Country
7. University of Zurich
8. Lagrange Laboratory
9. Institut d'Astrophysique Spatiale
10. Astroparticle and Cosmology Laboratory
11. University of Paris
12. ETH Zurich
13. INFN Sezione di Torino
14. Institute for Theoretical Physics
15. Case Western Reserve University
16. University College London
17. Infrared Processing and Analysis Center
18. University of Lisbon
19. Grenoble Institute of Technology
20. Aix-Marseille Université, CNRS, CNES, LAM, Marseille, France
21. Stanford University
22. SLAC National Accelerator Laboratory
23. Astronomical Observatory of Capodimonte
24. University of Southampton
25. European Space Astronomy Centre
26. Instituto de Astrofísica de Andalucía
27. University of Alicante
28. University of Ferrara
29. University of Surrey
30. Heidelberg University
31. Max Planck Institute for Astrophysics
32. Technical University of Munich
33. Brera Astronomical Observatory
34. INAF – Osservatorio di Astrofisica e Scienza dello Spazio di Bologna, Via Piero Gobetti 93/3, 40129, Bologna, Italy
35. Donostia International Physics Center
36. Ikerbasque
37. Thales (Italy)
38. INFN Sezione di Padova
39. University of Padua
40. INFN Sezione di Ferrara
41. University of Milan
42. INFN Sezione di Milano
43. Institut de Recherche sur les Lois Fondamentales de l'Univers
44. Astrophysique, Instrumentation et Modélisation
45. Newcastle University
46. Complutense University of Madrid
47. University of Salamanca
48. University of Clermont Auvergne
49. Claude Bernard University Lyon 1
50. Center for Particle Physics of Marseilles
51. University of Münster
52. University of Porto
53. University of Nottingham
54. Institute for High Energy Physics
55. Institute for Fundamental Physics of the Universe
56. Trieste Astronomical Observatory
57. INFN Sezione di Trieste
58. International School for Advanced Studies
59. University of Portsmouth
60. Ghent University
61. The University of Texas at Austin
62. UCB Lyon 1, CNRS/IN2P3, IUF, IP2I Lyon, 4 rue Enrico Fermi, 69622, Villeurbanne, France
63. Instituto de Astrofísica de Canarias
64. University of La Laguna
65. University of Groningen
66. Isaac Newton Group
67. University of Bologna
68. INFN Sezione di Bologna
69. Liverpool John Moores University
70. Osservatorio Astronomico di Padova
71. University of Waterloo
72. Max Planck Institute for Astronomy
73. Universidade Lusófona
74. CEA-Saclay, DRF/IRFU, departement d'ingenierie des systemes, bat472, 91191, Gif sur Yvette Cedex, France
75. Ludwig-Maximilians-Universität München
76. Centre National d'Études Spatiales
77. Australian National University
78. Centre of Excellence for All-Sky Astrophysics
79. University of Massachusetts System
80. Durham University
81. University of Tasmania
82. Institut National de Physique Nucléaire et de Physique des Particules
83. ATG Europe (Netherlands)
84. Centre de Physique Théorique
85. Research Institute in Astrophysics and Planetology
86. Max Planck Institute for Extraterrestrial Physics
87. National Institute for Nuclear Physics
88. L'Institut de physique théorique
89. Institut de Mécanique Céleste et de Calcul des Éphémérides
90. Observatory of Strasbourg
91. University of Edinburgh
92. Airbus (France)
93. Observatoire de la Côte d'Azur
94. National Institute for Astrophysics
95. Northeastern University
96. Kavli Institute for the Physics and Mathematics of the Universe
97. European Space Research and Technology Centre
98. Max Planck Institute for Physics
99. Agenzia Spaziale Italiana
100. Istituto di Astrofisica Spaziale e Fisica Cosmica di Milano
101. Perimeter Institute
102. Osservatorio Astrofisico di Torino
103. University of Geneva
104. Jet Propulsion Lab
105. University of Trieste
106. Ames Research Center
107. Bay Area Environmental Research Institute
108. Scuola Superiore Meridionale
109. INFN Sezione di Napoli
110. Univ. Grenoble Alpes, Univ. Savoie Mont Blanc, CNRS, LAPP, 74000, Annecy, France
111. Thales Services S.A.S., 290 Allée du Lac, 31670, Labège, France
112. Laboratory of Astrophysics of Bordeaux
113. Institut Universitaire de France
114. University of Manchester
115. University of Salerno
116. University of Genoa
117. INFN Sezione di Genova
118. Max Planck Institute for Gravitational Physics
119. Norwegian Space Centre
120. University of Bristol
121. University of Naples Federico II
122. Institute of Space Sciences
123. University of Missouri
124. University of Minnesota
125. University of Valladolid
126. University of Bonn
127. Astronomical Observatory of the Autonomous Region of the Aosta Valley (OAVdA), Loc. Lignan 39, 11020, Nus (Aosta Valley), Italy
128. Astronomical Observatory of Rome
129. Institut d'Estudis Espacials de Catalunya
130. University of Turin
131. Collurania Teramo Observatory
132. University of Miami
133. Cosmic Dawn Center (DAWN)
134. INFN Sezione di Roma I
135. University of Toronto
136. University of Barcelona
137. Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
138. RWTH Aachen University
139. Bielefeld University
140. ICSC – Centro Nazionale di Ricerca in High Performance Computing, Big Data e Quantum Computing, Via Magnanelli 2, Bologna, Italy
141. University of Hawaii at Manoa
142. Carnegie Observatories
143. Leibniz Institute for Astrophysics Potsdam
144. Imperial College London
145. Université Libre de Bruxelles
146. National University of Ireland, Maynooth
147. Collège de France
148. Sorbonne Université, Observatoire de Paris, Université PSL, CNRS, LERMA, 75014, Paris, France
149. European Space Research Institute
150. University of California, Irvine
151. European Space Operations Centre
152. University of Oxford
153. Arcetri Astrophysical Observatory
154. Universität Innsbruck
155. Canada–France–Hawaii Telescope
156. University of Rome Tor Vergata
157. University of A Coruña
158. University of Paris-Saclay
159. University of Parma
160. INFN Gruppo Collegato di Parma, Viale delle Scienze 7/A, 43124, Parma, Italy
161. Roma Tre University
162. INFN Sezione di Roma III
163. University of Salento
164. INFN Sezione di Lecce
165. INAF-Sezione di Lecce, c/o Dipartimento Matematica e Fisica, Via per Arnesano, 73100, Lecce, Italy
166. Sapienza University of Rome
167. Indian Institute of Technology Hyderabad
168. Technion – Israel Institute of Technology
169. Saint Mary's University
170. Polytechnic University of Cartagena
171. Institute of Physics of Cantabria
172. National Observatory
173. Centro de Estudios de Física del Cosmos de Aragón
174. California Institute of Technology
175. The Open University
176. Lancaster University
177. XCAM Limited, 2 Stone Circle Road, Northampton, NN3 8RF, UK
178. Cardiff University
179. Center for Computational Astrophysics, Flatiron Institute, 162 5th Avenue, New York, NY, 10010, USA
180. University of Oslo
181. University of Helsinki
182. Queen Mary University of London
183. University of Milano-Bicocca
184. Institut de Planétologie et d'Astrophysique de Grenoble
185. University of Florida
186. Goddard Space Flight Center
187. CEA Saclay
188. University of Florence
189. Nordic Institute for Theoretical Physics
190. FRACTAL S.L.N.E., calle Tulipán 2, Portal 13 1A, 28231, Las Rozas de Madrid, Spain
191. Autonomous University of Madrid
192. Max Planck Institute for Plasma Physics
193. Aalto University
194. Luleå University of Technology
195. NRC Herzberg, 5071 West Saanich Rd, Victoria, BC, V9E 2E7, Canada
196. Excellence Cluster Origins
197. United Kingdom Space Agency
198. TU Dresden
199. Deutsches Elektronen-Synchrotron DESY
200. European Southern Observatory
201. University of Applied Sciences and Arts Northwestern Switzerland
202. University of Cambridge
203. University of California, Santa Cruz
204. Ruhr University Bochum
205. University of Copenhagen
206. Felix Hormuth Engineering, Goethestr. 17, 69181, Leimen, Germany
207. Technical University of Denmark
208. Université PSL, Observatoire de Paris, Sorbonne Université, CNRS, LERMA, 75014, Paris, France
209. University of Minho
210. Waseda University
211. Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
212. Ernst-Reuter-Str. 4e, 31224, Peine, Germany
213. University of Pennsylvania
214. Stockholm University
215. University of KwaZulu-Natal
216. University of Turku
217. Serco for European Space Agency (ESA), Camino bajo del Castillo s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692, Madrid, Spain
218. Duke University
219. Swinburne University of Technology
220. University of the Western Cape
221. Science Systems and Applications (United States)
222. University of Maryland, College Park
223. American University of Beirut
224. International Centre for Radio Astronomy Research
225. National Observatory of Athens
226. University of Sussex
227. Research Centre for Astronomy and Earth Sciences
228. Konkoly Observatory
229. Helsinki Institute of Physics
230. Netherlands Institute for Space Research
231. APCO Technologies, Chemin de Champex 10, 1860, Aigle, Switzerland
232. Radboud University Nijmegen
233. Centre de Calcul de l'IN2P3/CNRS, 21 avenue Pierre de Coubertin, 69627, Villeurbanne Cedex, France
234. ICTP South American Institute for Fundamental Research, Instituto de Física Teórica, Universidade Estadual Paulista, São Paulo, Brazil
235. Lawrence Berkeley National Laboratory
236. University of California, Berkeley
237. Netherlands Institute for Radio Astronomy
238. Aurora Technology for European Space Agency (ESA), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692, Madrid, Spain
239. European University of Madrid
240. INAF-IASF Bologna, Via Piero Gobetti 101, 40129, Bologna, Italy
241. University of Malta
242. University of Liège
243. Carnegie Mellon University
244. Autonomous University of Barcelona
245. HE Space for European Space Agency (ESA), Camino bajo del Castillo, s/n, Urbanizacion Villafranca del Castillo, Villanueva de la Cañada, 28692, Madrid, Spain
246. Gran Sasso Science Institute
247. Ehime University
248. Institució Catalana de Recerca i Estudis Avançats
249. Nagoya University
250. University of California, Riverside
251. Dribia Data Research S.L., Pg. de Grácia, 55, 3r 4a, 08007, Barcelona, Spain
252. Laboratoire d'Annecy-le-Vieux de Physique Théorique
253. National Astronomical Observatory of Japan
254. Monash University
255. Chiba University
256. Aarhus University
257. Louisiana State University
258. University of L'Aquila
259. Princeton University
260. Cooper Union
261. Teledyne e2v (United Kingdom)
262. Institute of Space Science
263. University of Oulu
264. Centre for Astronomical Reseach of Lyon
265. European Organization for Nuclear Research
266. Institut UTINAM
267. NOVA, Netherlands Research School For Astronomy, Einsteinweg 55, 2333CC, Leiden, The Netherlands
268. Uppsala University
269. Université St Joseph; Faculty of Sciences, Beirut, Lebanon
270. University of Chile
271. Federal University of Toulouse Midi-Pyrénées
272. Universität Hamburg
273. University of British Columbia
274. Groupe Institut supérieur d'agriculture de Lille
275. Satlantis, University Science Park, Sede Bld, 48940, Leioa-Bilbao, Spain
276. University of Amsterdam
277. University of Birmingham
278. Clara Venture Labs AS, Fantoftvegen 38, 5072, Bergen, Norway
279. University of Lille
280. Royal Holloway University of London
281. University of California, Davis
282. University of Montreal
283. Institute of Astronomy and Astrophysics, Academia Sinica
284. Observatorio Astronómico Nacional, IGN, Calle Alfonso XII 3, 28014, Madrid, Spain
285. The Ohio State University
286. Laboratoire Univers et Particules de Montpellier
287. University of Trento
288. Telespazio Germany GmbH, Europapl. 5, 64293, Darmstadt, Germany
289. New York University
290. Rutherford Appleton Laboratory
291. Space Telescope Science Institute

The current standard model of cosmology successfully describes a variety of measurements, but the nature of its main ingredients, dark matter and dark energy, remains unknown. Euclid is a medium-class mission in the Cosmic Vision 2015–2025 programme of the European Space Agency (ESA) that will provide high-resolution optical imaging, as well as near-infrared imaging and spectroscopy, over about 14 000 deg² of extragalactic sky. In addition to accurate weak lensing and clustering measurements that probe structure formation over half of the age of the Universe, its primary probes for cosmology, these exquisite data will enable a wide range of science. This paper provides a high-level overview of the mission, summarising the survey characteristics, the various data-processing steps, and data products. We also highlight the main science objectives and expected performance.

Copyright and License

© The Authors 2025. Open Access article, published by EDP Sciences, under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Acknowledgement

The Euclid Consortium acknowledges the European Space Agency and a number of agencies and institutes that have supported the development of Euclid, in particular the Agenzia Spaziale Italiana, the Austrian Forschungsförderungsgesellschaft funded through BMK, the Belgian Science Policy, the Canadian Euclid Consortium, the Deutsches Zentrum für Luft- und Raumfahrt, the DTU Space and the Niels Bohr Institute in Denmark, the French Centre National d’Etudes Spatiales, the Fundação para a Ciência e a Tecnologia, the Hungarian Academy of Sciences, the Ministerio de Ciencia, Innovación y Universidades, the National Aeronautics and Space Administration, the National Astronomical Observatory of Japan, the Netherlandse Onderzoekschool Voor Astronomie, the Norwegian Space Agency, the Research Council of Finland, the Romanian Space Agency, the State Secretariat for Education, Research, and Innovation (SERI) at the Swiss Space Office (SSO), and the United Kingdom Space Agency. A complete and detailed list is available on the Euclid web site (http://www.euclid-ec.org).

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Is new version of: Discussion Paper: arXiv:2405.13491 (arXiv)

European Space Agency

Submitted: 2024-05-21
Accepted: 2024-08-28
Available: 2025-04-30

Caltech groups: Division of Physics, Mathematics and Astronomy (PMA)
Publication Status: Published

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Euclid. I. Overview of the Euclid mission

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Euclid. I. Overview of the Euclid mission

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