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