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What is dark matter?

What is dark energy?
How were the heavy elements from iron to uranium made?
Do neutrinos have mass?
Where do ultrahigh-energy particles come from?
Is a new theory of light and matter needed to explain what happens at very high energies and temperatures?
Are there new states of matter at ultrahigh temperatures and densities?
Are protons unstable?
Are there additional dimensions?
How did the universe begin?


8the dark matter is not fully defined still. but the dark matter can be defined as matter in universe leaving solid things like stars galaxies suns solar systems black holes star dust gases etc is dark matter.
energy possessed by the dark matter can be called the dark energy!!!
of course protons ad unstable because they are positively charged. if anything is stable then it will not contain any charge it 'll be neutral neither negative nor positive. so the protons are positively charged that's why they are unstable.
scientists says that the universe has started with a big bang. The cosmic event that marks the beginning of time and the rapid expansion of space for the visible universe. The evolution of the universe since that beginning point is described by the Big Bang Theory.
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Dark matter consists of galaxies, stars other matter that exists in the universe
Dark energy is the energy exposed by dark matter. It consists gravity too
Yes neutrinos have mass because it's subatomic particles produced by radioactive decay
Universe had begun by big bang
A explosive matter that had started the concept time and due to the big bang explosion universe had became visible
Protons are unstable because it has positively charged ions and we know that an ion doesn't consist in neutral phase that's why protons are unstable in nature
Yes, there is new state of matter called plasma. It is mostly charged by protons and electrons. It is invisible state of matter. Plasma matter consists more in the universe. At least 99% of universe is in plasma state. The concept cosmic event called big bang which had started time and made universe visible can be studied through big bang theory
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