The universe is significantly older than previously thought, astronomers find
Galaxies spotted by the James Webb Space Telescope have been causing trouble for the standard story of cosmic…
The biggest black holes grow by crashing into each other over and over again
Some of the biggest black holes ever picked up through gravitational waves may not have formed in a…
Webb Space Telescope Reveals Rare Planet Pair That Shouldn’t Exist
The planetary odd couple of a mini-Neptune and hot Jupiter probably formed out beyond its star’s “frostline,” in…
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…
Light Pollution Increased 16% Between 2014 and 2022, Study Finds
NASA data showing light pollution increasing over time. Humans have been observing the night sky since the ancient…
Explore 25 Incredible Photos of the Milky Way Captured Around the World — Colossal
Organized by Capture the Atlas, the 2026 Milky Way Photographer of the Year saw a record number of…
Gravitational-wave constraints on the pair-instability mass gap and nuclear burning in massive stars
Gravitational-wave observations of binary black holes have opened a new window onto massive-star evolution1,2,3,4,5, but population inferences remain…
NASA’s Webb Space Telescope Reveals a Dark Airless Super-Earth That Looks Like Mercury
A blazing exoplanet has been revealed as a dark, airless world with a surface unlike Earth’s. Instead of…
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…
A massive and evolved slow-rotating galaxy in the early Universe
Cappellari, M. et al. The SAURON project – X. The orbital anisotropy of elliptical and lenticular galaxies: revisiting…