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Astrophysics
Astrophysics is the physics of stars, galaxies and extreme objects — how the laws of nature work where no laboratory can test them. New studies, preprints and peer-reviewed papers, explained with what is actually new in them.
Articles
Four Cold Giant Planets Found Through Microlensing
Three Galaxies Without Dark Matter Weaken the Case for MOND
Supernova 2025wny: a lens magnified it 19-fold
First stars may help seed supermassive black holes
Nobel Physics Prize Goes to IceCube Leader Francis Halzen
JWST Finds Infrared Counterpart of the Rapid Burster in Liller 1
Blazar jet's polarization angle rotated 136° in 80 minutes
Triple star systems explain black-hole merger mass peak
Micro-tidal star disruptions outnumber black hole mergers
Webb finds brown dwarfs as light as two Jupiters