Universe is infinite-no beginning and no end

[pullmanwa]

It makes no mathematical logic to say the universe started with a minute pinhead sized mass that suddenly exploded and start expanding. If this were true, then what entity is the mass expanding into? Humans must accept that the universe is infinite and unbounded... with no beginning and no end. Sorry, but some things have no logical explanation.

 

[Drakkith]

You have a very serious misconception about the standard model of cosmology and the big bang theory.

To start, we do believe that it is very possible the universe is both unbound and infinite in extent. The big bang theory never says the universe, as a whole, was ever the size of a pinhead. It merely says that the density increases as we go further back in time. However we can take the OBSERVABLE universe and say that at X point in time it was the size of a pinhead. But this is only referring to the observable universe, not the whole universe.

Also, the big bang theory does not deal with the origin of the universe. What happened at and before t=0 in our model is unknown. It is possible that the universe has no beginning and no end. We simply don't know.

As for expansion, it was not an "explosion" in the normal sense. It merely means that all objects not bound to each other through one of the fundamental forces of nature are getting further apart over time. There is no expansion into any pre-existing space as a regular explosion would require.

 

[Mordred]

Drakkith covered the major points you were not aware of in cosmology.

this link has two articles that will also help

https://www.physicsforums.com/showthread.php?t=709478

I also recommend you read the FAQ section on this forum, their is numerous articles to clarify the misconceptions you have on the BB model

 

[Khashishi]

You can't just state something as true without any theory or evidence to back it up. These are science forums.

 

[sardar]

I understand the concept of the universe being infinite and unbounded can be difficult to comprehend. However, it is important to remember that our understanding of the universe is constantly evolving and we must be open to new theories and evidence.

The idea of a sudden explosion and expansion of the universe, known as the Big Bang theory, is currently the most widely accepted explanation for the origins of the universe. While it may seem illogical to think of a tiny mass suddenly exploding, this theory is supported by a vast amount of evidence from observations of the cosmic microwave background radiation, the distribution of galaxies, and the expansion of the universe.

In regards to the question of what the mass is expanding into, it is important to understand that the concept of space and time as we know it may not apply to the early moments of the universe. The expansion of the universe is not like an explosion in the traditional sense, but rather a stretching of space itself. Therefore, there is no need for the mass to be expanding into anything.

While it may be difficult to fully comprehend the concept of an infinite and unbounded universe, it is important for us as scientists to continue to explore and understand the mysteries of the universe through observation and experimentation. We must not limit ourselves to what we can currently understand, but rather continue to push the boundaries of our knowledge.