Proof That Dark Matter Exists

The way massive objects of the universe bend and distort gravity and light indicates to scientists about the existence of dark matter. The way large objects move about in the universe (velocity) also is a factor pushing towards the probability of much more mass than is visible.

Dark matter provides the gravity and weight in galaxies, which would fall apart if all they had was what is visible to scientists via their various instruments.

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Dark Matter Of The Universe

Dark Matter is a bizarre, unknown ingredient of the universe, which scientists cannot observe directly, but takes up 80 percent of the mass of the universe.

It is not seen by the naked eye as it does not emit light or energy. There are entire galaxies (like Dragonfly 44) that are made up entirely of dark matter. Scientists use particle detectors to detect cosmic rays, energy patterns, gravity, and positrons (anti-electrons) to research dark matter.

Apart from dark matter, the universe is full of energy, most of which is dark energy.

New data shows that the universe is not running out of energy like previous theories claimed, but is actually expanding at an accelerated rate.

  • Familiar material of the universe contains protons, neutrons and electrons, also known as Baryonic Matter.
  • Dark matter is made up of the same plus also non-baryonic matter (neutrinos, free electrons, supersymmetric particles, axions, and black holes) which is hard to detect.
  • The objects of the universe that may contribute to dark matter are dim brown dwarf stars, white dwarf stars and neutron stars.
  • Supermassive black holes, the size of which is 21 billion times the mass of our Sun, can make up a lot of dark matter by themselves.

Particle detectors and other dark matter detecting projects prove the universal interest in dark matter:

  1. From Italy, a particle detector named XENON1T is hunting for dark matter with an ultra-low background.
  2. From South Dakota, the Large Underground Xenon Dark-Matter Experiment (LUX) is hunting for weakly interacting massive particles (WIMP).
  3. IceCube Neutrino Observatory is situated under Antarctica’s ice, hunting for sterile neutrinos.

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Gravity is one of the universe's fundamental forces

Scientists know four forces - things that attract or repel one object from another. The strong force and the weak force operate only inside the centres of atoms. The electromagnetic force rules objects with excess charge, and gravity directs objects with mass.

People have long speculated about gravity. While ancient Greek and Indian philosophers observed gravity, it was the insight from Isaac Newton that made it possible to measure and predict the phenomenon.

What Is Gravity?

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The Braneworld Theory

The braneworld theory states that in order for the universe to have survived, it would have had to create relatively small "black holes". Moreover, this theory can be experimented upon.

This theory suggests that we are in a three dimensional membrane that exist inside the bulk or the higher dimensional space.

In the case of the Randall-Sundrum model, such tests could involve measuring the gravitational waves that are emitted by the black holes thus linking one brane to another.

10 wild theories about the universe

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What is a black hole?

A black hole is a place in space here gravity pulls so much that even light can not get out. The gravity is so strong because matter has been squeezed into a tiny space. This can happen when a star is dying.

Because no light can get out, people can't see black holes. They are invisible. Space telescopes with special tools can help find black holes. The special tools can see how stars that are very close to black holes act differently than other stars.

What Is a Black Hole?

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