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Local Group

The Local Group (also called M31 group or the Andromeda group) is the group of galaxies that includes our galaxy, the Milky Way.

Note: The above text is excerpted from the Wikipedia article "Local Group", which has been released under the GNU Free Documentation License.

For more information, see the following related content on ScienceDaily:

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Satellite Galaxies Can Carry on Forming Stars When They Pass Close to Their Parent Galaxies

July 6, 2021 — Using sophisticated simulations of the whole of the Local Group of galaxies, including the Milky Way, the Andromeda galaxy and their respective satellite galaxies, researchers have shown that the ...

Footprints of Galactic Immigration Uncovered in Andromeda Galaxy

Feb. 8, 2023 — Astronomers have uncovered striking new evidence for a mass migration of stars into the Andromeda Galaxy. Intricate patterns in the motions of stars reveal an immigration history very similar to that ...

Dark Matter Map Reveals Hidden Bridges Between Galaxies

May 25, 2021 — A new map of dark matter in the local universe reveals several previously undiscovered filamentary structures connecting galaxies. The map, developed using machine learning, could enable studies ...

Old and New Stars Paint Very Different Pictures of the Triangulum Galaxy

Jan. 11, 2023 — Scientists have reported something unexpected about the distinct populations of stars that make up the Triangulum galaxy: In this satellite galaxy, a close companion of the much larger Andromeda ...

Cosmic Rays Drive Galaxy's Winds

Oct. 25, 2022 — VLA observations revealed that cosmic rays can play an important role in driving winds that rob galaxies of the gas needed to form new stars. This mechanism may be an important factor in galactic ...

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 ...

Why the Vast Supergalactic Plane Is Teeming With Only One Type of Galaxy

Nov. 20, 2023 — Our own Milky Way galaxy is part of a much larger formation, the local Supercluster structure, which contains several massive galaxy clusters and thousands of individual galaxies. Due to its ...

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 ...

Astronomers Observe Intra-Group Light -- The Elusive Glow Between Distant Galaxies

Nov. 23, 2022 — Pioneering a new technique, researchers have peered into the extremely faint light that exists between galaxies to describe the history and state of orphan ...

Largest Cluster of Galaxies Known in the Early Universe

Feb. 26, 2021 — A study has found the most densely populated galaxy cluster in formation in the primitive universe. The researchers predict that this structure, which is at a distance of 12.5 billion light years ...

Space & Time News

December 8, 2023

Ancient Stars Made Extraordinarily Heavy Elements

Dec. 7, 2023 — How heavy can an element be? An international team of researchers has found that ancient stars were capable of producing elements with atomic masses greater than 260, heavier than any element on the periodic table found naturally on Earth. The ...

An Astronomical Waltz Reveals a Sextuplet of Planets

Nov. 29, 2023 — Astronomers have found a key new system of six transiting planets orbiting a bright star in a harmonic rhythm. This rare property enabled the team to determine the planetary orbits which initially appeared as an unsolvable ...

Astronomers Discover Disc Around Star in Another Galaxy

Nov. 29, 2023 — In a remarkable discovery, astronomers have found a disc around a young star in the Large Magellanic Cloud, a galaxy neighboring ours. It's the first time such a disc, identical to those forming planets in our own Milky Way, has ever been found ...

Telescope Array Detects Second Highest-Energy Cosmic Ray Ever

Nov. 23, 2023 — In 1991, an experiment detected the highest-energy cosmic ray ever observed. Later dubbed the Oh-My-God particle, the cosmic ray’s energy shocked astrophysicists. Nothing in our galaxy had the power to produce it, and the particle had more energy ...

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Scholars Say It's Time to Declare a New Epoch on the Moon, the 'Lunar Anthropocene'

Dec. 8, 2023 — According to anthropologists and geologists, it's time to acknowledge humans have become the dominant force shaping the moon's environment by ...

Giant Doubts About Giant Exomoons

Dec. 7, 2023 — The extrasolar planets Kepler-1625b and Kepler-1708b are supposedly the home worlds of the first known exomoons. A new study now comes to a different ...

Stellar Winds Regulate Growth of Galaxies

Dec. 6, 2023 — Galactic winds enable the exchange of matter between galaxies and their surroundings. In this way, they limit the growth of galaxies, that is, their star formation rate. Although this had already ...

Interpreting the Afterglow of a Black Hole's Breakfast

Dec. 4, 2023 — An entirely new way to probe how active black holes behave when they eat has been discovered by an international team of ...

Limitations of Asteroid Crater Lakes as Climate Archives

Dec. 5, 2023 — In southern Germany just north of the Danube, there lies a large circular depression between the hilly surroundings: the Nördlinger Ries. Almost 15 million years ago, an asteroid struck this spot. ...

Unlocking Neutron Star Rotation Anomalies: Insights from Quantum Simulation

Dec. 5, 2023 — A collaboration between quantum physicists and astrophysicists has achieved a significant breakthrough in understanding neutron star glitches. They were able to numerically simulate this enigmatic ...

Astronomers Determine the Age of Three Mysterious Baby Stars at the Heart of the Milky Way

Dec. 5, 2023 — Through analysis of high-resolution data from a ten-meter telescope in Hawaii, researchers have succeeded in generating new knowledge about three ...

Can Signs of Life Be Detected from Saturn's Frigid Moon?

Dec. 5, 2023 — Researchers have shown unambiguous laboratory evidence that amino acids transported in the ice plumes of Saturn's moon, Eceladus, can survive impact speeds of up to 4.2 km/s, supporting their ...

Tracking Undetectable Space Junk

Dec. 4, 2023 — Satellite and spacecraft operators may finally be able to detect small pieces of debris orbiting Earth using a new approach. Colliding pieces of space debris emit electric signals that could help ...

Ghostlike Dusty Galaxy Reappears in James Webb Space Telescope Image

Dec. 1, 2023 — Astronomers studying images from the James Webb Space Telescope have identified an object as a 'dusty star-forming galaxy' from nearly 1 billion years after the Big Bang. They have also discovered ...