Scientists have created the sharpest map ever of dark matter, revealing how this invisible substance shaped galaxies, stars, and even the conditions needed for life. When you look at the night sky, it feels complete. Stars shine, galaxies glow, and...

The Milky Way’s story is written in chemical fingerprints and stellar streams, revealing a complex history of ancient mergers and a future trajectory toward a massive collision with Andromeda. For most of human history, people saw the Milky Way as a...

New simulations of 15,000 stellar streams suggest galaxies can create features once thought to be evidence of dark matter, narrowing the search for it. For years, astronomers have looked to the long, ribbon-like stellar streams wrapping around the...

Physicists suggest hunting dark matter decay into unseen gravitons, a mechanism that may generate gamma‑ray signals via cosmic magnetic fields. Only a small fraction of the Universe’s matter can be seen directly. Roughly fifteen percent consists of...

New calculations reveal how underground liquid scintillator detectors can hunt for relativistic dark matter particles by tracking knocked-out neutrons. Dark matter remains one of the greatest enduring mysteries in modern physics. Although astrophysical...

Scientists reexamined a mysterious signal from the Milky Way’s crowded core, uncovering evidence that revives a previously disputed explanation. A fresh machine‑learning investigation has reignited the discussion over the diffuse gamma‑ray glow that...

by Ling Zhu examined over 600 000 giant stars observed by Gaia and the LAMOST telescope to reconstruct the galaxy’s dark‑matter halo. The authors proposed that the outer halo may be oriented nearly vertically relative to the disc, while the inner halo...

Scientists have built a virtual sky with 3.4 billion galaxies, allowing the Euclid mission to test its tools for probing dark matter and dark energy before real data arrives. Euclid’s Flagship mock is a single, gigantic simulated sky that turns...

A new theoretical framework uses renormalization group equations to bridge conflicting galaxy clustering scales and unify cosmic survey data. Cosmologists mapping the large-scale structure of the Universe have long wrestled with a frustrating...

feature observed in many spirals that arises from resonant interactions between stars and the rotating bar within the dark‑matter halo. The simulation shows how a Milky Way‑like galaxy and its central stellar structures change over time, comparing their...

Radio flashes from distant galaxies help astronomers weigh invisible metal reservoirs in the circumgalactic medium. A team of astrophysicists has used signals from 25 fast radio bursts to peer into the invisible gaseous halo surrounding our home...

New empirical models indicate that future carbon intensity mapping surveys will successfully trace large-scale cosmic structure. A new astronomical model suggests that upcoming surveys searching for ancient carbon emissions in the early universe will...

A deep infrared survey uncovers hundreds of ancient galaxy clusters and groups, providing a vital calibration tool for upcoming space telescopes. Astronomers have mapped a massive cosmic archive containing 825 galaxy cluster candidates spanning up to...

A massive new simulation of the early universe is providing astronomers with groundbreaking insights into the formation of galaxies and cosmic evolution. Astrophysicists have unveiled an ambitious new map of the infant universe, successfully...

Simulations reveal most stellar‑mass black holes in the Milky Way are likely isolated and undetectable with current methods. State‑of‑the‑art simulations indicate that more than nine‑tenths of the Milky Way’s stellar‑mass black holes travel alone,...

The new Lumina simulation tracks galaxies and radiation across the early universe, offering astronomers a detailed look at how light shaped the cosmos. The dawn of the universe was a period of profound transformation, defined not just by the birth of...