SPARKE, L. S.; GALLAGHER III, J. S. Galaxies in the Universe: An Introduction. Cambridge: Cambridge University Press, 2000. Dostupné online. ISBN0521597404. (anglicky)
archive.today
MCKEE, Maggie. Galactic loners produce more stars [online]. New Scientist, 7. června2005 [cit. 2008-08-27]. Dostupné v archivu pořízeném dne 2012-09-11. (Anglicky)
RICKER, Paul. When Galaxy Clusters Collide [online]. San Diego Supercomputer Center [cit. 2008-08-27]. Dostupné v archivu. (Anglicky)
TENN, Joe. Hendrik Christoffel van de Hulst [online]. Sonoma State University [cit. 2008-08-03]. Dostupné v archivu pořízeném dne 2012-05-29. (Anglicky)
The Effects of Earth's Upper Atmosphere on Radio Signals [online]. NASA [cit. 2006-08-10]. Dostupné v archivu pořízeném dne 2012-05-29.
astro.cz
ZEMANČÍKOVÁ, Viktória. Vo vesmíre sú najmenej dva bilióny galaxií [online]. astro.cz, 2017-03-16 [cit. 2017-03-18]. Dostupné online. (slovensky)
cam.ac.uk
damtp.cam.ac.uk
Galaxy Clusters and Large-Scale Structure [online]. University of Cambridge [cit. 2008-08-03]. Dostupné online. (Anglicky)
www-xray.ast.cam.ac.uk
DUNN, Robert. An Introduction to X-ray Astronomy [online]. Institute of Astronomy X-Ray Group [cit. 2007-01-02]. Dostupné online.
harvard.edu
chandra.harvard.edu
Groups & Clusters of Galaxies [online]. NASA Chandra [cit. 2008-08-27]. Dostupné online. (Anglicky)
jpost.com
Astronomers were wrong about the number of galaxies in universe. The Jerusalem Post | JPost.com [online]. [cit. 2021-06-15]. Dostupné online. (anglicky)
Carnegie Institution for Science. The rise and fall of galaxy formation. phys.org [online]. 2016-08-30 [cit. 2023-02-09]. Dostupné online. (anglicky)
International Centre for Radio Astronomy Research. Astronomers discover galaxies spin like clockwork. phys.org [online]. 2018-03-13 [cit. 2023-02-09]. Dostupné online. (anglicky)
National Radio Astronomy Observatory. Galaxies in the infant universe were surprisingly mature. phys.org [online]. 2020-08-27 [cit. 2023-02-09]. Dostupné online. (anglicky)
BISHOP, Michael. Portrait of young galaxy throws theory of galaxy formation on its head. phys.org [online]. 2021-02-11 [cit. 2023-02-09]. Dostupné online. (anglicky)
Astronomers find abundance of Milky Way–like galaxies in early universe, rewriting cosmic evolution theories. phys.org [online]. [cit. 2023-09-22]. Dostupné online.
AUBURN, Luke. New study reveals wide diversity of galaxies in the early universe. phys.org [online]. 2023-01-09 [cit. 2023-02-09]. Dostupné online. (anglicky)
Pennsylvania State University. Discovery of massive early galaxies defies prior understanding of the universe. phys.org [online]. 2023-02-22 [cit. 2023-03-30]. Dostupné online. (anglicky)
AIRHART, Marc. James Webb Space Telescope images challenge theories of how universe evolved. phys.org [online]. 2023-04-13 [cit. 2023-04-24]. Dostupné online. (anglicky)
National Institutes of Natural Sciences. Explosive birth of stars swells galactic cores. phys.org [online]. 2017-09-10 [cit. 2023-02-09]. Dostupné online. (anglicky)
JEFFERSON, Steve. New record: Keck Observatory measures most distant galaxy. phys.org [online]. 2015-08-06 [cit. 2023-02-09]. Dostupné online. (anglicky)
sciencedaily.com
Giant Radio Telescope Imaging Could Make Dark Matter Visible. ScienceDaily. December 14, 2006. Dostupné online [cit. 2007-01-02].
web.archive.org
HUPP, E.; ROY, S.; WATZKE, M. NASA Finds Direct Proof of Dark Matter [online]. NASA, 21. 8. 2006 [cit. 2008-08-03]. Dostupné v archivu pořízeném dne 2020-03-28. (anglicky)
2002 Cosmology Prize Recipient—Vera Rubin, Ph.D. [online]. Peter Gruber Foundation [cit. 2008-08-03]. Dostupné v archivu pořízeném dne 2006-10-10. (Anglicky)