• Privacy
  • Contact
  • Home
  • Astronomy
  • Biology
  • Ecology
  • Psychology
  • Physics
  • Other
No Result
View All Result
Busy Mind Thinking
  • Home
  • Astronomy
  • Biology
  • Ecology
  • Psychology
  • Physics
  • Other
No Result
View All Result
Busy Mind Thinking
No Result
View All Result

Dark Matter Has Been Found

in Astronomy
Home Astronomy
Share on FacebookShare on Twitter

Dark matter is a mysterious and unknown substance that dominates the universe. Ordinary matter, which is the source of things such as stars, planets, and gas clouds that can be seen, makes up only a few percent of the matter in the universe.

Scientists have believed that, unless their understanding of physics is incorrect, dark matter is the main substance in the universe. But until now, they had no evidence of it existing apart from galaxies and hot gas.

An image taken by the Hubble Space Telescope shows a ring of dark matter surrounding a galaxy cluster named ZwCl0024+1652, which lies 5 billion light-years away. The ring measures 2.6 million light-years across.

Previous research showed that the galaxy cluster was formed when two separate galaxy clusters collided. Computer simulations revealed what happened after the collision.

The dark matter in the two clusters fell to the center before rebounding. But as they moved outward, they were prevented from escaping by gravity, which slowed the dark matter down and piled it up in a ring around the newly formed cluster.

Galaxies would not stay grouped together if dark matter wasn’t present. The visible, everyday matter in galaxy clusters would be insufficient to keep them from breaking apart.

Astronomers cannot “see” dark matter directly.

They infer the existence of this mysterious substance by the effect it has on its surroundings. One of these effects is the gravitational lensing it causes. Gravitational lensing is when massive foreground objects bend the light from more distant galaxies.

Images reveal this bending as streaks of light stretched in arcs around the massive object. Mapping the distorted light allows the foreground object’s mass and distribution to be determined. The discovery of this ring-shaped object around galaxy cluster ZwCl0024+1652 is the best evidence yet that dark matter exists.

M. James Jee of Johns Hopkins University in Baltimore was one of the team members that discovered the dark-matter ring. “I was annoyed when I saw the ring because I thought it was an artifact, which would have implied a flaw in our data reduction,” he says. I couldn’t believe my result.

But the more I tried to remove the ring, the more it showed up. It took more than a year for me to convince myself that the ring was real. I’ve looked at a number of clusters and I haven’t seen anything like this. “

As Jee describes the importance of the discovery: “Although the invisible matter has been found before in other galaxy clusters, it has never been detected to be so largely separated from the hot gas and the galaxies that make up galaxy clusters. By seeing a dark matter structure that is not traced by galaxies and hot gas, we can study how it behaves differently from normal matter.”

Tags: Dark Mattergalaxyuniverse

Related Posts

2 Great Models of the Universe
Astronomy

2 Great Models of the Universe

Mysterious Matter in the Universe
Astronomy

Mysterious Matter in the Universe

The Evolution of Stars
Astronomy

The Evolution of Stars

The Future of the Planet Earth
Astronomy

The Poor Future of the Planet Earth

Static Isolated Black Hole
Astronomy

The Static Isolated Black Hole

Life of Stars: Birth and Death of Stars
Astronomy

Life of Stars and Death of Stars

Variable Stars: Stars that Change in Brightness
Astronomy

Variable Stars: Stars that Change in Brightness

Next Post
Feeling Jung: The Shadow and Collective Unconsciousness

The Shadow and Collective Unconsciousness

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

I agree to the Terms & Conditions and Privacy Policy.

Busy Mind Thinking

One of the most powerful abilities of a human being is the capacity to use our thoughts to create our reality and interpret things in a more empowering way.

Categories

  • Astronomy
  • Biology
  • Ecology
  • Other
  • Physics
  • Psychology

Tags

ecology education energy galaxy gifted education happiness plants psychology types of energy universe

Recent News

What is the planning fallacy?

What is the planning fallacy?

What is the plate tectonics theory?

What is the plate tectonics theory?

  • Privacy
  • Contact

© 2021 busymindthinking.com

No Result
View All Result
  • Home
  • Astronomy
  • Biology
  • Ecology
  • Psychology
  • Physics
  • Other

© 2021 busymindthinking.com

This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.