What was before the Big Bang.
What is Anti-Matter and Normal-Mater
What are Black Holes and White Holes
Are they Parallel Universes
What is a Nebula
What is dark matter
Answers
Explanation:
1)The initial singularity is a gravitational singularity predicted by general relativity to have existed before the Big Bang[1] and thought to have contained all the energy and spacetime of the Universe.[2] The instant immediately following the initial singularity is part of the Planck epoch, the earliest period of time in the history of the universe.
2)Antimatter is the opposite of normal matter. More specifically, the sub-atomic particles of antimatter have properties opposite those of normal matter. The electrical charge of those particles is reversed. Antimatter was created along with matter after the Big Bang, but antimatter is rare in today's universe, and scientists aren't sure why
3)The black hole/white hole appears "eternal" from the perspective of an outside observer, in the sense that particles traveling outward from the white hole interior region can pass the observer at any time, and particles traveling inward which will eventually reach the black hole interior region can also pass the ...
4)From science fiction to science fact, there is a concept that suggests that there could be other universes besides our own, where all the choices you made in this life played out in alternate realities. The concept is known as a "parallel universe," and is a facet of the astronomical theory of the multiverse
5)cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter
6)Dark matter is a form of matter thought to account for approximately 85% of the matter in the universe and about a quarter of its total energy density or about {\displaystyle 2.241\times 10^{-27}}{\displaystyle 2.241\times 10^{-27}} kg per cubic meter. Its presence is implied in a variety of astrophysical observations, including gravitational effects that cannot be explained by accepted theories of gravity
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Answer:
Antimatter particles can be defined by their negative baryon number or lepton number, while "normal" (non-antimatter) matter particles have a positive baryon or lepton number. These two classes of particles are the antiparticle partners of each other. A "positron" is the antimatter equivalent of the "electron".
white hole is a hypothetical region of spacetime and singularity which cannot be entered from the outside, although energy-matter, light and information can escape from it. ... White holes appear in the theory of eternal black holes.