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Top Headlines

Astronomers Explain Origin of Elusive Ultradiffuse Galaxies

Sep. 6, 2021 — As their name suggests, ultradiffuse galaxies, or UDGs, are dwarf galaxies whose stars are spread out over a vast region, resulting in extremely low surface brightness, making them very difficult to ...

Spiral galaxy | (c) Alexandr Mitiuc / stock.adobe.com

Cold Planets Exist Throughout Our Galaxy, Even in the Galactic Bulge, Research Suggests

Aug. 30, 2021 — Researchers combined observations and modeling to infer the distribution of cold planets in the Milky Way. The results ...

How Disorderly Young Galaxies Grow Up and Mature

Aug. 27, 2021 — Using a supercomputer simulation, a research team has succeeded in following the development of a galaxy over a span of 13.8 billion years. The study shows how, due to interstellar frontal ...

Cosmic Rays May Be Key to Understanding Galactic Dynamics

Aug. 24, 2021 — While moving around within the gas in the interstellar medium, cosmic rays kickstart the background protons, which causes a collective plasma wave movement akin to ripples on a lake. The big question ...

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New Simulation Shows How Galaxies Feed Their Supermassive Black Holes

Aug. 17, 2021 — While other simulations have modeled black hole growth, new model is the first single computer simulation powerful enough to comprehensively account for the numerous forces and factors that play into ...

Cracking a Mystery of Massive Black Holes and Quasars With Supercomputer Simulations

Aug. 17, 2021 — Researchers address some of the questions surrounding these massive and enigmatic features of the universe by using new, high-powered ...

New Findings on the Evolution of Galaxies

Aug. 4, 2021 — Galaxies eventually undergo a phase in which they lose most of their gas, which results in a change into their properties over the course of their evolution. Current models for galaxy evolution ...

Why Is This Weird, Metallic Star Hurtling out of the Milky Way?

Aug. 2, 2021 — About 2,000 light-years away from Earth, there is a star catapulting toward the edge of the Milky Way. This particular star is one of a unique breed of fast-moving stars -- remnant pieces of massive ...

Astronomers Discover How to Feed a Black Hole

July 29, 2021 — Researchers have discovered long narrow dust filaments which surround and feed black holes in the centers of galaxies, and which could be the natural cause of the darkening of the centers of many ...

Scientists Observe Gas Re-Accretion in Dying Galaxies for the First Time

July 29, 2021 — A new study suggests that previously displaced gases can re-accrete onto galaxies, potentially slowing down the process of galaxy death caused by ram pressure stripping, and creating unique ...

Scientists Capture Most-Detailed Radio Image of Andromeda Galaxy to Date

July 28, 2021 — Scientists have published a new, detailed radio image of the Andromeda galaxy -- the Milky Way's sister galaxy -- which will allow them to identify and study the regions of Andromeda where new stars ...

Three Dwarf Spheroidal Galaxies Found to Rotate

July 27, 2021 — Astrophysicists have discovered the presence of transverse rotation (in the plane of the sky) in three dwarf spheroidal galaxies, a very faint type of galaxies and difficult to observe, which are ...

New Study Reveals Previously Unseen Star Formation in Milky Way

July 22, 2021 — A new survey of our home galaxy, the Milky Way, combines the capabilities of the Very Large Array and the Effelsberg telescope in Germany to provide astronomers with valuable new insights into how ...

A Large Tidal Stream Observed in the Sombrero Galaxy

July 21, 2021 — Astronomers have made detailed observations of a large tidal flow around the Sombrero galaxy, whose strange morphology has still not been definitively ...