17/7/2025–|Last update: 10:20 (Mecca time)
A recent study conducted by the University of Durham revealed the possibility of between 80 to 100 small “ghost” galaxy revolving around our mother -in -law, but it has remained invisible to telescopes until now.
Scientists call these galaxies the “orphan galaxies” or “ghost”, because they lost most of their dark and attractive material that maintained their cohesion, and became very weak and faded to the point that make them invisible to most current astronomical monitoring tools.
Dark material
Scientists believe that the dark matter is an uncomplicated image of matter, but its effect can be monitored on how galaxies are formed and evolved, as it is an invisible “glue” that connects stars, gas and dust together.
And when the dwarf galaxy loses its dark material, it turns into a galaxy, that is, it has a fragile structure that can barely monitor it.
But you may ask: What withdrawing the dark matter from these galaxies? Over the course of billions of years, these dwarf galaxies were stripped of their dark material due to the effects of tidal and carrots resulting from the appeal of the Milky Way just as the sea water is pulled from the beach due to the moon, and this made them very faded, so that the previous simulations completely ignored them as they disappeared from existence.
But the truth is that these galaxies are still in silence around our galaxy like universal ghosts that are not seen with the naked eye.
Giant computers
The research team relied on a high -precision computer simulation known as “Aquarias”, along with an advanced sports model called “Galforam”, to expect where these ghost galaxies are present, according to Statement Official journalist from the university.
These models were able to track the development of the dark matter and its interactions over billions of years, and revealed that there are a large number of these galaxies that we may not have yet revolve around our galaxy like a hidden flock.
In addition, scientists used the giant computer “Cosma” of the Dirac project at Durham University to operate this giant simulation, which took thousands of calculations.
Cosma computer is a super computer dedicated to processing very huge data, such as simulating galaxies and the development of dark matter in the universe, and it can carry out billions of calculations per second, and works with connected servers that contain thousands of processors that work together as one mind.
Proof of the standard model
The importance of this discovery does not stop at the mere assumption of new galaxies, but rather extends to supporting the standard of cosmology (Lamda CDM).
This model stipulates that only 5% of the composition of the universe is made of ordinary matter (atoms that we know), and 25% of the universe composition represented in an invisible dark material, while the rest (70%) is a dark dark energy that pushes the universe to expand.
Therefore, finding these ghost galaxies means that the model works properly even on very small standards, which enhances scientists’ confidence in it.
So far, astronomers have discovered about 60 dwarf galaxies that revolve around the Milky Way, but the new study indicates that this number may almost double if we can monitor these ghost galaxies.
Hope is held on new telescopes such as the Vera Rubin telescope and a heritage sky wiping over time, and these ultra -sensitive tools may be able to capture the very dim light from these galaxies and reveal their secrets.