Uri Neri, Yuri I. Wolf, Simon Roux, Antonio Pedro Camargo, Benjamin Lee, Darius Kazlauskas, I. Min Chen, Natalia Ivanova, Lisa Zeigler Allen, David Paez-Espino, Donald A. Bryant, Devaki Bhaya, Mart Krupovic, Valerian V. Dolja, Nikos C. Kyrpides, Eugene V. Koonin, Uri Gophna, Adrienne B. Narrowe, Alexander J. Probst, Alexander Sczyrba, Annegret Kohler, Armand Séguin, Ashley Shade, Barbara J. Campbell, Björn D. Lindahl, Brandi Kiel Reese, Breanna M. Roque, Chris DeRito, Colin Averill, Daniel Cullen, David A.C. Beck, David A. Walsh, David M. Ward, Dongying Wu, Emiley Eloe-Fadrosh, Eoin L. Brodie, Erica B. Young, Erik A. Lilleskov, Federico J. Castillo, Francis M. Martin, Gary R. LeCleir, Graeme T. Attwood, Hinsby Cadillo-Quiroz, Holly M. Simon, Ian Hewson, Igor V. Grigoriev, James M. Tiedje, Janet K. Jansson, Janey Lee, Jean S. VanderGheynst, Jeff Dangl, Jeff S. Bowman, Jeffrey L. Blanchard, Jennifer L. Bowen, Jiangbing Xu, Jillian F. Banfield, Jody W. Deming, Joel E. Kostka, John M. Gladden, Josephine Z. Rapp, Joshua Sharpe, Katherine D. McMahon, Kathleen K. Treseder, Kay D. Bidle, Kelly C. Wrighton, Kimberlee Thamatrakoln, Klaus Nusslein, Laura K. Meredith, Lucia Ramirez, Marc Buee, Marcel Huntemann, Marina G. Kalyuzhnaya, Mark P. Waldrop, Matthew B. Sullivan, Matthew O. Schrenk, Matthias Hess, Michael A. Vega, Michelle A. O’Malley, Monica Medina, Naomi E. Gilbert, Nathalie Delherbe, Olivia U. Mason, Paul Dijkstra, Peter F. Chuckran, Petr Baldrian, Philippe Constant, Ramunas Stepanauskas, Rebecca A. Daly, Regina Lamendella, Robert J. Gruninger, Robert M. McKay, Samuel Hylander, Sarah L. Lebeis, Sarah P. Esser, Silvia G. Acinas, Steven S. Wilhelm, Steven W. Singer, Susannah S. Tringe, Tanja Woyke, T.B.K. Reddy, Terrence H. Bell, Thomas Mock, Tim McAllister, Vera Thiel, Vincent J. Denef, Wen-Tso Liu, Willm Martens-Habbena, Xiao-Jun Allen Liu, Zachary S. Cooper, Zhong Wang, Tel Aviv University (TAU), National Center for Biotechnology Information (NCBI), Lawrence Berkeley National Laboratory [Berkeley] (LBNL), University of Oxford, Vilnius University [Vilnius], J. Craig Venter Institute [La Jolla, USA] (JCVI), Pennsylvania State University (Penn State), Penn State System, Carnegie Institution for Science, Virologie des archées - Archaeal Virology, Université Paris Cité (UPCité)-Microbiologie Intégrative et Moléculaire (UMR6047), Institut Pasteur [Paris] (IP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Institut Pasteur [Paris] (IP)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Oregon State University (OSU), U.G. and U.N. are supported by the European Research Council (ERC-AdG 787514). U.N. is supported by a fellowship from the Edmond J. Safra Center for Bioinformatics at Tel Aviv University. Y.I.W. and E.V.K. are supported through the Intramural Research Program of the US National Institutes of Health (National Library of Medicine). V.V.D. was partially supported by NIH/NLM/NCBI Visiting Scientist Fellowship. The work of the U.S. Department of Energy Joint Genome Institute (S.R., A.P.C., I.M.C., N.I., D.P.-E., N.C.K., and all JGI co-authors), a DOE Office of Science User Facility, is supported by the Office of Science of the U.S. Department of Energy under contract no. DE-AC02-05CH11231. M.K. was supported by l’Agence Nationale de la Recherche grants ANR-20-CE20-009-02 and ANR-21-CE11-0001-01. D.K. was funded by the European Social Fund under no. 09.3.3-LMT-K-712-14-0027. D.A.B. is supported by grant NNX16SJ62G from the NASA Exobiology program, and by grant DE-FG02-94ER20137 from the Photosynthetic Systems Program, Division of Chemical Sciences, Geosciences, and Biosciences (CSGB), Office of Basic Energy Sciences of the U.S. Department of Energy. We gratefully acknowledge the contributions of many scientists and principal investigators, who sent extracted genetic material for isolate genomes, environmental metagenomes, and metatranscriptomes, or sequencing results as part of the Department of Energy Joint Genome Institute Community Science Program and allowed us to include in our study the RNA virus sequences detected in these publicly available data sets regardless of publication status., The RNA Virus Discovery Consortium members are Adrienne B. Narrowe, Alexander J. Probst, Alexander Sczyrba, Annegret Kohler, Armand Séguin, Ashley Shade, Barbara J. Campbell, Björn D. Lindahl, Brandi Kiel Reese, Breanna M. Roque, Chris DeRito, Colin Averill, Daniel Cullen, David A.C. Beck, David A. Walsh, David M. Ward, Dongying Wu, Emiley Eloe-Fadrosh, Eoin L. Brodie, Erica B. Young, Erik A. Lilleskov, Federico J. Castillo, Francis M. Martin, Gary R. LeCleir, Graeme T. Attwood, Hinsby Cadillo-Quiroz, Holly M. Simon, Ian Hewson, Igor V. Grigoriev, James M. Tiedje, Janet K. Jansson, Janey Lee, Jean S. VanderGheynst, Jeff Dangl, Jeff S. Bowman, Jeffrey L. Blanchard, Jennifer L. Bowen, Jiangbing Xu, Jillian F. Banfield, Jody W. Deming, Joel E. Kostka, John M. Gladden, Josephine Z. Rapp, Joshua Sharpe, Katherine D. McMahon, Kathleen K. Treseder, Kay D. Bidle, Kelly C. Wrighton, Kimberlee Thamatrakoln, Klaus Nusslein, Laura K. Meredith, Lucia Ramirez, Marc Buee, Marcel Huntemann, Marina G. Kalyuzhnaya, Mark P. Waldrop, Matthew B. Sullivan, Matthew O. Schrenk, Matthias Hess, Michael A. Vega, Michelle A. O’Malley, Monica Medina, Naomi E. Gilbert, Nathalie Delherbe, Olivia U. Mason, Paul Dijkstra, Peter F. Chuckran, Petr Baldrian, Philippe Constant, Ramunas Stepanauskas, Rebecca A. Daly, Regina Lamendella, Robert J. Gruninger, Robert M. McKay, Samuel Hylander, Sarah L. Lebeis, Sarah P. Esser, Silvia G. Acinas, Steven S. Wilhelm, Steven W. Singer, Susannah S. Tringe, Tanja Woyke, T.B.K. Reddy, Terrence H. Bell, Thomas Mock, Tim McAllister, Vera Thiel, Vincent J. Denef, Wen-Tso Liu, Willm Martens-Habbena, Xiao-Jun Allen Liu, Zachary S. Cooper, and Zhong Wang, ANR-20-CE20-0009,VIROMET,Devoiler le virome des archées methanogenes(2020), and ANR-21-CE11-0001,ArcFus,Protéines de classe II de fusion membranaire chez les archées(2021)