these structures provide clear evidence that our galaxy has grown by absorbing smaller systems over billions of years. Dwarf Galaxies of the Milky Way Dozens of dwarf galaxies orbit the Milky Way. Some are bright and easy to spot, while others are...

Three unusual dwarf galaxies discovered by a student may unlock the mystery of how galactic encounters effectively shut down star formation. A fresh study led by a young researcher has identified three elusive dwarf galaxies that appear to defy the...

New MEGATRON simulations reveal how ancient stellar explosions shaped the iron patterns found in today’s dwarf galaxies, linking the universe’s first stars. A new suite of sophisticated computer simulations, known as MEGATRON, is providing fresh...

Hubble’s view of a tiny galaxy provides the clearest evidence yet of how the early Universe cleared its primordial cosmic fog. A dwarf galaxy barely a hundredth the mass of the Milky Way has provided astronomers with one of the clearest looks yet at a...

through Lyman-α emission at redshift 13 (Nature, 2025) Most of the photons that reionized the Universe came from dwarf galaxies (Nature, 2024) The Low-Redshift Lyman Continuum Survey – Unveiling the ISM properties of low-z Lyman-continuum emitters...

surrounding the spiral galaxy NGC 5068, the lenticular galaxy NGC 5084, and the elliptical galaxy NGC 5087. While dwarf galaxies are among the most numerous structures in the universe, their incredibly low luminosity—ranging from roughly one million to...

achievement for the observatory’s preliminary testing phase. Mapping the Milky Way’s Dimmest Neighbors Ultra-faint dwarf galaxies are notoriously difficult to spot because their low stellar density often causes them to blend into the background of the...

Learn about the different types of civilization and discover the role of the Kardashev Scale in gauging their technological advancements, energy utilization, and the potential for interstellar communication on a cosmic scale. The Kardashev Scale is a...

faint galaxies that host them. As more of these signals are located, researchers hope to determine whether such dwarf galaxies are standard birthplaces for FRBs or if this event represents a unique exception. The Macquart relation and predicted survey...

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...

of early star formation. Future surveys are expected to find more such stars, both in the LMC and in other nearby dwarf galaxies. What We Still Do Not Know Five stars are only the beginning. Researchers still do not know how common CEMP stars are in the...

Beyond the familiar spiral disc, the Milky Way’s stellar halo retains debris from long‑ago mergers and torn‑apart dwarf galaxies, offering clues to how our galaxy assembled. One leading hypothesis ties the halo’s sluggish rotation to the ancient...

Chandra space telescope data has uncovered mysterious cosmic objects with a strange signature that defies current scientific classification. Data mined from the extensive archives of NASA’s Chandra X-ray Observatory has unveiled a previously...

Brief flashes of millimeter-wave light seen by the South Pole Telescope reveal magnetic activity in compact white dwarf systems close to the Galactic center, showing that these small stars can release energy in unexpected ways. The center of the Milky...

Hundreds of newly predicted manganese signals offer a breakthrough in tracing cosmic chemistry and understanding how the universe forged its elements. Astronomers have unveiled a new diagnostic tool for mapping the chemical history of the cosmos,...

Astronomers have traced a fleeting radio signal to a distant galaxy, unlocking a powerful new method to investigate the history of the early universe. Astronomers have captured a fleeting radio pulse that originated more than 10 billion years ago,...

New research reveals that thousands of stars moving in opposing directions suggest the Large Magellanic Cloud is actively tearing its neighbor apart. A nearby dwarf galaxy is revealing signs of a violent gravitational dismantling, as new research...

Astronomers discover a black hole wrapped in dense hydrogen 660 Myr after the Big Bang, shedding light on JWST’s red dots and rapid black‑hole growth. Observations with the James Webb Space Telescope have turned a faint point of light known as...

JWST reveals ancient black holes, and a new study proposes the missing piece that could explain their mysterious origins. Early observations with the James Webb Space Telescope have revealed a handful of extraordinarily massive black holes that seem to...

Astronomers find unexpected slowdown in Andromeda’s core, pointing to a nearby object with a tangled past. A recent analysis of Hubble Space Telescope observations indicates that the Andromeda galaxy (M31) has experienced a sharp decline in its...