that best matches that environment.” Consequences for Interpreting Remote Galaxies The implication reaches far beyond the Milky Way. When astronomers observe galaxies whose individual stars cannot be resolved, they rely on the IMF to convert integrated...

Astronomers using the CHIME radio telescope have detected a 5-billion-year-old hydrogen signal, offering a powerful new map of the universe’s expansion. Astronomers have successfully extracted a whisper-quiet signal from the dawn of time using the...

Using a 96-hour dataset from the MeerKAT telescope, astronomers have detected a faint, collective radio glow of hydrogen from two distinct cosmic eras. Astronomers have achieved a significant breakthrough in observational cosmology, successfully...

than decades‑old maps indicated. A team of astronomers has delivered one of the most accurate distance determinations to the Milky Way’s far‑flung spiral arms, showing that several outer regions lie farther from the Sun than standard maps have...

July’s sky is packed with planets, meteor showers, the Milky Way and a bright summer full moon—perfect for stargazers. July promises an abundant lineup of celestial sights, from planetary groupings and meteor streams to a dark‑sky view of the Milky...

the full range of spectra over the same time span. The measured Fermi-LAT γ\gamma-ray spectrum in the same ROI of the Milky Way is shown by the black dotted line. While features of the γ\gamma-ray spectra for the simulated galaxies show similarities to...

Astrophysics Potsdam (AIP), have now produced a four‑billion‑year hydrodynamical model of a barred spiral reminiscent of the Milky Way. The simulation naturally generated both central features and tracked their growth over cosmic time. Bar‑Driven Inflow...

and time, helping scientists pin down nature of dark energy. Intimate because it will reveal planetary systems across the Milky Way, giving us a clearer sense of how common, or rare, worlds like ours might be. If Roman delivers on its goals, it will not...

After 40 years of hunting the Milky Way’s giant arc, astronomers uncovered a hidden clue that reveals an even stranger nearby structure. For forty years astronomers have debated the nature of a striking radio feature that arches away from the Milky...

values reported to date for an individual galaxy, corresponding to a projected diameter of ∼520 kpc.” IC 1101 Outshines the Milky Way by Orders of Magnitude The revised dimensions underscore the extraordinary scale of IC 1101. The analysis estimates a...

with high precision. The task was further complicated by the object’s position near the dense, star-rich plane of the Milky Way, which effectively masks faint solar system bodies. Unlocking the History of the Outer Solar System Currently situated about...

A mysterious chemical discovery within a giant cloud near the Milky Way’s core is challenging current theories about how distant regions of space evolve. Astronomers have uncovered a massive, chemically diverse gas cloud near the galactic center that...

New cosmic simulations reveal the Milky Way formed from a turbulent network of thousands of small galaxies in the early universe. A sophisticated new suite of supercomputer simulations suggests our Milky Way began its life as a chaotic, densely packed...

capable of carving pathways through the surrounding gas. Although its physical size is roughly one‑hundredth that of the Milky Way, the galaxy’s star‑formation rate outpaces our own by a factor of ten. NASA estimates that between half and the entirety...

narrowing the search for it. For years, astronomers have looked to the long, ribbon-like stellar streams wrapping around the Milky Way as vital clues in the hunt for dark matter. The prevailing theory suggested that these structures, formed by the tidal...

Astronomers have discovered a colossal structure from the early Universe, 5,000 times the mass of the Milky Way, revealing how cosmic giants first assembled. Astronomers have mapped two massive structures dating back to when the universe was just 2.1...

material, or someone who is just interested in astronomy in general,” said Weijmans. Deep Dives into Black Holes and the Milky Way The scale of DR20 is substantial, offering over three million distinct spectra of stars and galaxies. This treasure trove...

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,...

Astronomers finally solve the decades‑old mystery of the giant structure once thought to erupt from the Milky Way’s core. A team of astronomers has finally clarified the nature of a luminous bubble that for four decades was thought to be a colossal...

A central pillar of its mission, the Galactic Bulge Time-Domain Survey, will focus on the densely populated core of the Milky Way, revisiting specific fields every 12 minutes to detect subtle fluctuations in light. Researchers will utilize a technique...