Massive black hole from the early universe has astronomers looking back to the Big Bang
Far back in cosmic time, one small red object is refusing to behave. Abell 2744–QSO1 appears just 700…
Supernovae help astronomers measure how the Universe expands over time
Astronomers have leaned on Type Ia supernovae for decades because these stellar explosions act like mile markers across…
CIGaRS I: combined simulation-based inference from type Ia supernovae and host photometry
Unified forward modelling of galaxies and type Ia supernovae CIGaRS is a unified forward model for type Ia…
Strange atmosphere detected on small icy world beyond Pluto
A star blinked in a strange way over Japan last January, and that flicker may have exposed something…
Could the Universe’s Hidden Shape Solve One of Physics’ Biggest Mysteries?
Physicists are grappling with a major mismatch between theory and observation in the energy driving the universe’s expansion.…
Astronomers map the climate of Earth-like exoplanets for the first time
A pair of scorched worlds circling the red dwarf TRAPPIST-1 now offer one of the clearest looks yet…
Scientists Complete Largest 3D Map of the Universe to Probe Dark Energy
A thin slice of the map produced by the DESI five-year survey shows galaxies and quasars above and…
The Universe Is Expanding Too Fast and Scientists Can’t Explain Why
Artist’s interpretation of the cosmic distance ladder — a succession of overlapping methods used to measure distances across…
Largest 3D Map of the Universe Is Adding Serious Fuel to the Cosmology Crisis
Last week, the Dark Energy Spectroscopy Instrument (DESI) concluded its first official survey. Over the past five years,…
Black hole GW190521 may be a wormhole from another universe
For just one-tenth of a second in May 2019, the universe delivered a signal that did not fit…
The Most Elusive Number in Physics Just Got Even More Mysterious
After years of careful measurement, a physicist uncovers a result that doesn’t quite align with previous findings, deepening…
For the first time, astronomers identify the edge of the Milky Way’s disc
The Milky Way does not come with a clean outer line. Its disc does not stop the way…