*Guys my real questions is* 🤔
1. Which one is the real border of this universe ?
2. How do you define those borders ?
3. Objects and Lights both are coexisting in this universe.
4. Do you really think, objects are moving faster than light.?
Oh 🙄😳.. then *what is the space ?*
5. what are the real properties of the nature of *SPACE* !!??
6. What is the space *before* the (BIGBANG) and *thereafter* ?
7. If it is *properly vacuumed one* before the big bang. 🤔. Why not it is purely after the big bang.
That means the CURRENT vacuum *SPACE* is not purely a vacuum one 🤔 ( *virtual particle 's interactions always happening*)
then how can we say it is *vacuum space* ? or *voids* existing in this universe ?
( i mean it *inside the balloon space* !!?? *UNIVERSE* 🤔🙄😳)
🕺 One second before the *BIG BANG* happened things are here 🤷
https://physics.aps.org/articles/v5/142
1. Plank era
2. GUT era
3. Electroweak era
4. Particle era
The First Three Seconds: a Review of Possible Expansion Histories of the Early Universe
*Qus 1*): what is really before the existing *Plank era* !!??
Illustration of the density (scalar) and[-]
gravitational wave (tensor) fluctuations arising from the end of inflation. Note that the assumption that a singularity exists prior to inflation is not necessarily valid.
National Science Foundation (NASA, JPL, Keck Foundation, Moore Foundation, related) – Funded BICEP2 Program
*Qus 2*:. What is *SINGULARITY* before the big bang *POP UP* 🤷 !!!????
A visual history of the expanding universe includes the hot, dense state known as the Big Bang and the growth and formation of structure subsequently. The full suite of data, including the observations of the light elements and the cosmic microwave background, leaves only the Big Bang as a valid explanation for all we see. (Credit: NASA/CXC/M. Weiss)
Singularities and Black Holes
*Does light have constant SPEED or not in this EXPANDING universe ?*
Is the quantum vacuum disturbing the REAL SPEED of the LIGHT 🤔😳 !!??
Black hole Cosmology
SINGULARITIES and BLACK HOLES
These theorems indicate that our universe began with an *initial singularity*, the Big Bang, approximately 14 billion years ago. They also indicate that in certain circumstances (discussed below) collapsing matter will form a black hole with a *central singularity*
*Qus 3* : *what is singularity in big bang theory ?*
In the Big Bang theory, a singularity is the point where the universe began, more than 13 billion years ago. It was a single point that was incredibly hot and dense, and it initiated the expansion and cooling of space.
Here are some other things to know about singularities:
Definition: A singularity is a place in the universe where the laws of physics break down.
Location: Singularities can occur anywhere in the universe.
Mathematics: Singularities are common in the math that physicists use to understand the universe.
Black holes: The point where all the mass of a black hole is trapped is also called a singularity.
Event horizons: Most singularities are hidden behind event horizons.
Initial singularity: Some models of the Big Bang theory predict an initial singularity that existed before the Big Bang.
The inflaton field is a hypothetical scalar field that's thought to have caused the rapid expansion of the universe in its early stages. The field's energy density was approximately constant during inflation, which caused the universe to expand tremendously.
https://en.m.wikipedia.org/wiki/Inflaton
https://www.ctc.cam.ac.uk/outreach/origins/inflation_zero.php
https://www.ctc.cam.ac.uk/footer/glossary.php#critical%20density
BIG BANG
standard cosmological model such as ΛCDM.
cosmic microwave background radiation (CMBR) was emitted, which represents the radius of the visible universe, is about 14.0 billion parsecs (about 45.7 billion light-years). The comoving distance to the edge of the observable universe is about 14.3 billion parsecs (about 46.6 billion light-years)
Research papers:
https://www.researchgate.net/publication/1739820_The_origin_of_matter_and_structure_in_the_universe