Mastodawn

StellarSnap Jun 27, 2025

📸 Messier 109
Barred spiral galaxy M109 lies just beneath the Big Dipper in Ursa Major. Though small in our sky, it spans 120,000 light-years across at a distance of 60 million light-years. This view also shows possible satellite galaxies UGC 6969, UGC 6940, and UGC 6923.
📅 June 27, 2025
📷 Robert Eder
🔗 https://stellarsnap.space
#APOD #Messier109 #M109 #NGC3992 #BarredSpiral #UrsaMajor #GalaxyCluster #Astrophotography #StellarSnap #DeepSky #SatelliteGalaxies

Ansgar Schmidt

Mar 31, 2024

The Milky Way’s Smallest, Faintest Satellite Galaxy Found https://www.universetoday.com/166388/the-milky-ways-smallest-faintest-satellite-galaxy-found/ #satellitegalaxies #globularclusters #darkmatterhalo #dwarfgalaxies #darkmatter #astronomy #lambdacdm #galaxies #milkyway

The Milky Way's Smallest, Faintest Satellite Galaxy Found

The Milky Way has many satellite galaxies, most notably the Large and Small Magellanic Clouds. They’re both visible to the naked eye from the southern hemisphere. Now astronomers have discovered another satellite that’s the smallest and dimmest one ever detected. It may also be one of the most dark matter-dominated galaxies ever found. The galaxy … Continue reading "The Milky Way’s Smallest, Faintest Satellite Galaxy Found"

Universe Today

Matt Willemsen Jan 30, 2024

The universe might be younger than we thought, galaxies' motion suggests
https://www.livescience.com/space/astronomy/the-universe-might-be-younger-than-we-thought-galaxies-motion-suggests #universe #age #younger #SatelliteGalaxies #redshift

The universe might be younger than we thought, galaxies' motion suggests

We think the universe is 13.8 billion years old, but could we be wrong? A new study of bound galaxies offers an unexplored clue.

Live Science

ScienceActually Jan 19, 2023

The Milky Way has about 60 satellite galaxies - including the notable Large Magellanic Cloud, which can be observed with the naked eye - although studies predict that our home galaxy should host an additional 100 or so very faint satellite galaxies we've not found yet.

#science #sciencefacts #milkyway #galaxy #galaxies #satellitegalaxies

https://news.uchicago.edu/story/groupie-galaxies-orbiting-milky-way-tell-us-about-dark-matter-how-galaxy-formed