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"the biggest answer on brainly"
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The biggest answer is to this question :-
What is dark matter and dark energy ??
Step-by-step explanation:
Dark matter and dark energy are the yin and yang of the cosmos. Dark matter produces an attractive force (gravity), while dark energy produces a repulsive force (antigravity). ... Astronomers know dark matter exists because visible matter doesn't have enough gravitational muster to hold galaxies together.Dark energy is the name given to the force that is believed to be making the universe larger. Distant galaxies appear to be moving away from us at high speed: the idea is that the universe is getting bigger and has been since the Big Bang.And what's the difference between dark energy and dark matter? In short, dark matter slows down the expansion of the universe, while dark energy speeds it up. ... This is because dark matter does interact with gravity, but it doesn't reflect, absorb, or emit light.
Dark matter is the most mysterious, non-interacting substance in the Universe. Its gravitational effects are necessary to explain the rotation of galaxies, the motions of clusters, and the largest scale-structure in the entire Universe
1 gram of dark matter is worth $65.5 trillion.
Dark energy is an enigmatic phenomenon that acts in opposition to gravity and is responsible for accelerating the expansion of the universe. Though dark energy constitutes three-fourths of the mass-energy of the cosmos, its underlying nature continues to elude physicists. Dark Energy is a hypothetical form of energy that exerts a negative, repulsive pressure, behaving like the opposite of gravity. It has been hypothesised to account for the observational properties of distant type Ia supernovae, which show the universe going through an accelerated period of expansion. And there's a chance that one form of it could behave like tiny, high-speed projectiles, blasting through human flesh like bullets, a new study suggests. In fact, the dark matter impact would generate so much heat that it would tunnel through body tissue as a flesh-melting plasma plume, the study authors reported.
The Universe, despite all the planets, stars, gas, dust, galaxies, and more we find within it, doesn’t quite add up. On the largest cosmic scales, we find the same story everywhere we look: there isn’t enough matter to account for the gravitational effects we observe. Matter clumps into a cosmic web; galaxy clusters grow to enormous sizes with fast-moving galaxies inside; individual galaxies rotate at large speeds that remain large all the way to their edges.
Without the presence of about five times as much matter as protons, neutrons, and electrons can account for, none of this would be possible. Our picture of the Universe requires dark matter for self-consistency. Yet, if dark matter is real, that means our Milky Way has a dark matter halo, too, and some of that matter passed through the Solar System, Earth, and even you. Here’s how to know how much is inside you right now.
Back in the young Universe, everything was hotter, denser, and more uniform than it is today. Early on, there were regions of ever-so-slight overdensity, where there was a greater-than-average amount of matter there. Gravitation preferentially attracts more matter to a region like this, but radiation works to push that matter back out.
If all we had was normal matter and its constituent particles to go with this radiation, the galaxies and galaxy clusters that exist today would be vastly different than what we observe. But if dark matter is present in this 5-to-1 ratio with normal matter, we can theoretically reproduce the cosmic web of structure to match our observations and measurements.
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