Galaxy with no Dark Matter

Subject – Science and Tech

Context – Astronomers led by researchers from the Netherlands have found no trace of dark matter in the galaxy AGC 114905

Concept –

Astronomers led by researchers from the Netherlands have found no trace of dark matter in the galaxy AGC 114905.
An ultra-diffuse dwarf galaxy, AGC 114905, is about 250 million light-years away. The word dwarf here refers to its luminosity (MNRAS).
The researchers collected data on the rotation of gas in AGC 114905 for 40 hours with the Very Large Array telescope.

Dark Matter

Dark matter, though never detected, is believed to be present in the entire universe, its existence presumed because a number of observable celestial phenomena could not be possible if the universe did not have much more matter in it than is seen.
It is believed to make up more than 95% of all universe.
Dark matter is composed of particles that do not absorb, reflect, or emit light, so they cannot be detected by observing electromagnetic radiation.
Its gravitational force prevents stars in our Milky Way from flying apart.
However, attempts to detect such dark matter particles using underground experiments, or accelerator experiments including the world’s largest accelerator, the Large Hadron Collider (LHC), have failed so far.