Astronomers hear a mysterious ‘hum’ across the universe; one explanation begins with strange dark stars 13 billion years ago
Astronomers may have found a new way to investigate one of the biggest mysteries in cosmic history: how…
Extended components of little red dots in the rest-frame optical
Furtak, L. J. et al. JWST UNCOVER: extremely red and compact object at zphot = 7.6 triply imaged…
Cosmic plasma was supposed to rule out dark photons. Simulations say otherwise
A major limit on dark photon dark matter may be far weaker because early-universe plasma stops absorbing energy…
Astronomers Discover a Brand-New Type of Object: Part Black Hole, Part Star
At the cosmic dawn, the universe was sprinkled with giant black holes—monstrosities so huge that scientists are still…
Dark matter may be naturally tuned to a hidden fifth dimension
Dark matter appears to hold galaxies together, yet it has never shown itself directly. A new theory suggests…
New study reveals how dark matter formed shortly after the Big Bang
Dark matter may not have needed a calm, cold start to help build the universe. For decades, that…
Hubble has spotted ‘impossible’ light in deep space, and scientists are trying to explain where it came from
Astronomers have detected light from a tiny but powerful galaxy that existed when the universe was still emerging…
A new window on neutrino astronomy at cosmological distances – Nature
A new window on neutrino astronomy at cosmological distances NatureGhost particle could have traveled 11 billion light-years to reach…
Scientists use Einstein’s equations to reveal what came before the Big Bang
Some of the hardest questions in cosmology begin where the usual math gives up. Push Einstein’s theory far…
Astronomers Trace Elusive High-Energy Neutrino to Star-Forming Galaxy in Early Universe
JCMT0402-0424, a dusty starburst galaxy around 11 billion light-years away, is the strongest candidate yet for the source…
Webb Weighs Most Distant Inactive Black Hole Ever Found
A supermassive black hole 6 billion times the mass of the Sun lurks in MRG-M0138, a gravitationally lensed…
Webb Spots Supermassive Black Hole Older Than Its Home Galaxy
Astronomers using the NASA/ESA/CSA James Webb Space Telescope have found an enormous black hole in the early Universe…