dwarf galaxies

The Milky Way’s Last Merger Event Was More Recent Than Thought

The Milky Way is only as massive as it is because of collisions and mergers with other galaxies. This is…

1 week ago

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…

3 months ago

Dwarf Galaxies Could be the Key to Explaining Dark Matter

If dark matter is a particle, it's possible that it could self-annihilate, becoming normal matter and releasing gamma radiation. Dwarf…

3 months ago

Dwarf Galaxies Banished the Darkness and Lit Up the Early Universe

During the Universe's Dark Ages, dense primordial gas absorbed and scattered light, prohibiting it from travelling. Only when the first…

4 months ago

Mystery Solved. How We Get Ultra-Compact Dwarf Galaxies

I have been fascinated by galaxies for most of my adult life. I find it amazing that, just as we…

7 months ago

The Perfect Tidal Tail Connects These two Galaxies Seen by Hubble

Sometimes it's tempting to imagine a supernatural hand behind the arrangement of celestial bodies. But the Universe is big, huge…

2 years ago

Dwarf Galaxies Found Without Influence From Dark Matter

Ask astronomers about dark matter and one of the things they talk about is that this invisible, mysterious "stuff" permeates…

2 years ago

A Nearby Dwarf Galaxy has a Surprisingly Massive Black Hole in its Heart

New research from UT Austin shows that dwarf galaxies - like our neighbor, Leo I - also have massive black…

3 years ago

It Took 50 Nights of Observations to Capture New Data on the Magellanic Clouds

The Magellanic Clouds are two of our closest neighbours, in galactic terms. The pair of irregular dwarf galaxies were drawn…

4 years ago

7% of the Stars in the Milky Way’s Center Came From a Single Globular Cluster That Got Too Close and Was Broken Up

The heart of the Milky Way can be a mysterious place. A gigantic black hole resides there, and it's surrounded…

4 years ago