Dark matter and energy Research update Did dark matter have a chilling effect on the early universe? Debate intensifies over hypothesis that mystery interaction cooled ancient hydrogen gas Read article: Did dark matter have a chilling effect on the early universe?
Dark matter and energy Feature The dark-energy deniers 20 years after discovering that the universe is expanding with increasing speed, scientists still argue about whether dark energy explains it. Keith Cooper explores the debate Read article: The dark-energy deniers
Dark matter and energy Research update Charged dark matter could explain chill in early universe Tiny electric charges may have cooled primordial hydrogen Read article: Charged dark matter could explain chill in early universe
Dark matter and energy Research update Galaxy devoid of dark matter puzzles astronomers Discovery could strengthen the case for dark matter Read article: Galaxy devoid of dark matter puzzles astronomers
Dark matter and energy Research update Ancient hydrogen reveals clues to dark matter’s identity Did dark matter interact in the early universe? Read article: Ancient hydrogen reveals clues to dark matter’s identity
Dark matter and energy Research update Satellite galaxies of Centaurus A defy dark-matter model Latest observation concurs with previous studies of the Milky Way and Andromeda Read article: Satellite galaxies of Centaurus A defy dark-matter model
Dark matter and energy Research update Neutron anomaly might point to dark matter "Dark decay" could leave traces in existing experiments Read article: Neutron anomaly might point to dark matter
Dark matter and energy Research update Excess positrons could come from dark matter after all HAWC observations discount nearby pulsar sources Read article: Excess positrons could come from dark matter after all
Dark matter and energy Blog Happy Dark Matter Day “Don’t be afraid of the dark," say organizers of worldwide celebration Read article: Happy Dark Matter Day
Dark matter and energy Research update Does self-interacting dark matter explain galactic diversity? Simulation predicts rotation curves of 30 galaxies Read article: Does self-interacting dark matter explain galactic diversity?