We measure the “warmness” of the dark matter, i.e. the comoving root-mean-square thermal velocity v hrms (1) , with nearly 3000 spiral galaxy rotation curves in the ...

The universe's first galaxies were hot messes, according to a recent study. During their younger days, they were wild, chaotic bundles of turbulent gas, churned up by huge gulps of intergalactic gas, ...

The Rubin Observatory is located on Cerro Pachón in the Andes Mountains in Chile.

Astronomers from the International Centre of Radio Astronomy Research (ICRAR) have released an incredible image of the Milky Way shining in low-frequency radio light, revealing a spectacular realm ...

Halloween is upon us and the 2025 spooky season is abuzz with talk of three cosmic visitors — Comet Lemmon, Comet SWAN and the interstellar traveler 3I ATLAS — said to be haunting the night sky. But ...

Astronomers observe Type II supernova SN 2024bch behaving differently, with energy from Bowen fluorescence rather than ejecta interaction, challenging models of stellar death and high-energy neutrino ...

Halloween telescope image reveals bat-shaped stellar nursery where infant stars are born. The cosmic creature spans four full ...

"No low-frequency radio image of the entire Southern Galactic Plane has been published before, making this an exciting ...

A spooky bat has been spotted flying over the European Southern Observatory's (ESO's) Paranal site in Chile, right in time ...

A coronal mass ejection on another star has been witnessed in its entirety for the first time, revealing that when these ...

Starlink satellites have been developed by SpaceX to provide internet to remote locations. Here we explore the controversial ...

Astronomers have created the most detailed low-frequency map of the Milky Way, revealing otherwise hidden stars and ...