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Galaxies
Galaxies are systems of billions of stars, gas, dust and dark matter; ours is the Milky Way. How galaxies form, merge and change, based on data from James Webb, Hubble and ground-based observatories.
Articles
Three Galaxies Without Dark Matter Weaken the Case for MOND
Supernova 2025wny: a lens magnified it 19-fold
JWST spots four faint clusters hidden in M82's halo
Chandra Spots Strange Objects in the Pinwheel Galaxy
Tightest Known Binary Black Hole Found in NGC 5044
How star clumps form in reionization-era galaxies
Chandra catalogs 327 X-ray sources near cluster Abell 2744
Little Red Dots May Mark Black Hole Birth
JWST sets first primordial black hole limits toward M31
Most Distant Galaxy Proto-Supercluster Weighs 5,000 Milky Ways