Breakthrough Discovery, Contradicting The Dark Matter Theory: A Second Galaxy With No Dark Matter Was Found

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Everything that has been previously known about the formation of galaxies might be about to change following the latest discovery.

Back in March 2018, researchers at Yale University have presented the results for their observations of the galaxy NGC1052-DF2. When this happened, their work has been met with a mixture of praise and criticism.

The research has suggested back then that the unusual galaxy contained almost no dark matter and it’s essential to learn that this idea contradicts the existing dark matter theory. That’s why the event drew tons of attention.

A team that was led by Sol Goldman Family Professor of Astronomy at Yale University, Pieter van Dokkum, has discovered yet another galaxy that doesn’t contain any dark matter.

Dark matter is separable from galaxies

Now, this discovery supports their initial observations that dark matter is actually separable from galaxies.

This discovery may require people to completely rethink all assumptions that have been made regarding the way in which galaxies are formed.

We cannot see dark matter, but it is believed to make up a large part of the universe’s mass. The galaxies consist of dark matter as well as normal matter such as planets and stars.

Now, the scientists’ discovery of such galaxies that do not contain dark matter is one without precedent, and it definitely comes as a surprise.

“The fact that we’re seeing something that’s just completely new is what’s so fascinating,” said Shany Danieli in Keck Observatory, who first spotted the galaxies two years ago. “No one knew that such galaxies existed, and the best thing in the world for an astronomy student is to discover an object, whether it’s a planet, a star, or a galaxy, that no one knew about or even thought about.”

The second galaxy that lacks dark matter has been dubbed NGC 1052-DF4, and this finding is just as exciting for the researchers as the original discovery of DF2.

And, as a conclusion, here’s an observation, just to set some things straight: if dark matter cannot be directly seen or observed, this does not mean that it cannot be detected. Here’s some interesting info on detecting the presence/absence of dark matter.


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3 Comments

  1. Nothing is contradictory about this this discovery! The observation of another galaxy with an apparent lack of dark matter simply reinforces the notion that dark matter is a particle, and it can be separated from normal baryonic matter. In other words, this discovery strengthens that idea that dark matter is a particle, and that ideas of modifying gravity are even less likely.

  2. A galaxy apparently lacking or with minimally inferred dark matter gravity-inducing substance is a largely diffuse unorganized collection of stars very different from the dynamical swirl of the typical elliptical galaxy, such as our Milky Way.

  3. The only “evidence” for dark matter is the observation that most galaxies rotate in a way that require a mass much larger than that of the stars in it. “Therefore: dark matter.”

    No one has seen dark matter or inducted its characteristics from samples, etc.

    Now we find galaxies that don’t do this. Do we conclude that “Dark Matter” was never “a thing” in the first place? No, we just assume that “Dark matter is separable from galaxies.”

    The hubris with which “dark matter” and “dark energy” have been constructed into objective reality as true “things” is unsettling.

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