EDUCATIONAL SCIENCE

Galaxy without dark matter detected for the first time

Researchers found a galaxy, known as NGC1052-DF2, that is almost completely made up of ordinary matter and contains no dark matter. The research, published in the March 29th issue of the journal Nature, amassed data from the Gemini North and W. M. Keck Observatories. If there is any dark matter at all, it’s very little. The stars in the galaxy can account for all of the mass, and there doesn’t seem to be any room for dark matter.

Dark matter is a type of matter that has not yet been directly observed, but is thought to form a fundamental part of the universe. It is suspected that the reason this “dark” matter has not yet been directly observed is because, it almost never interacts in ways that can be detected, and because it comprises new kinds of elementary particles that have not yet been discovered – meaning it is distinct from “ordinary” matter such as protons, neutrons, electrons, and neutrinos.

Here is a video explains what is dark matter.

 

Reported by Mehul Arora, Age 14

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