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Right after the big bang happened, the universe was expanding at a speed of light. While it was expanding, it started to cool itself down since the big bang caused the universe to heat up to ridiculous temperature.
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Did all iron on earth originate from the big bang?
No. The only elements made within a few million years (actually a few seconds) after the Big Bang were hydrogen, helium, and trace amounts of lithium. Iron was not created until stars began nucleosynthesis.
Were protons and neutrons in existence immediately after big bang?
We weren't there; NOBODY was. There was nothing at the moment of the Big Bang, and we cannot be certain of what came into existence or when in the seconds, minutes or hours following the event. So, "immediately"? We believe - based entirely on poorly-understood mathematical theories for which no practical test is possible - that "matter", in the sense of protons, neutrons, electrons, and their corresponding antiparticles, probably did come into existence within a few seconds of the event.
How big is the big bang?
Now How Would We Know EXACTLY How Big It Is And/Or Was?! We Aren't That Clever You Know! ¬¬ Go Ask Alister... The big bang is still happening today, as the universe is still expanding. So the answer to this question depends on the timeframe. The big bang is as big as the universe is today. Before the big bang when all matter was contained in a singularity it was no bigger than a few microns across. Five minutes after the big bang the entire universe was the size of a golf ball. This might not seem big after five minutes, but to go from the size of a few microns to a golf ball is like going from New York to Pluto in 5 minutes.
When was the big bang-?
The current estimate for the initial expansion of the universe dubbed "The big bang" occurred about 13.7 billion years ago.
Were Most of the elements heavier than helium made during the first few minutes after the big bang?
According to the big bang hypothesis, hydrogen was the only element created after the big bang. Within the first few minutes, the temperature was hot enough for fusion to occur, enabling helium, lithium and a few other elements to be created. After about 3 minutes, the Universe cooled sufficiently, for this process to halt. It was not until about 500,000 million years later, when the first stars went supernova, that heavier elements were seeded into the Universe.
Did all iron on earth originate from the big bang?
No. The only elements made within a few million years (actually a few seconds) after the Big Bang were hydrogen, helium, and trace amounts of lithium. Iron was not created until stars began nucleosynthesis.
When it comes to our existence what does the big bang theory not describe or account for?
The "Big Bang Theory" may account for the events that happened during the first few seconds or minutes of the universe's existence. It doesn't purport to explain anything more recent than that.
What is Big bang nucleosyntesis?
That refers to the formation of atomic nuclei during the first few minutes after the Big Bang.
Where did the big bang come from?
There are a few theories, but nobody knows for certain.
Why is kaley not on big bang theory?
She missed a few episodes after breaking her leg.
Is the big bang really over or is the known universe still in the early throws of an explosive expansion - JP?
The term "Big Bang" usually refers to the first few seconds - or even fractions of a second - after what is considered the beginning of the Universe. On the other hand, our Universe is still expanding - in fact, it has been observed that the expansion is getting faster.
Were protons and neutrons in existence immediately after big bang?
We weren't there; NOBODY was. There was nothing at the moment of the Big Bang, and we cannot be certain of what came into existence or when in the seconds, minutes or hours following the event. So, "immediately"? We believe - based entirely on poorly-understood mathematical theories for which no practical test is possible - that "matter", in the sense of protons, neutrons, electrons, and their corresponding antiparticles, probably did come into existence within a few seconds of the event.
How big is the big bang?
Now How Would We Know EXACTLY How Big It Is And/Or Was?! We Aren't That Clever You Know! ¬¬ Go Ask Alister... The big bang is still happening today, as the universe is still expanding. So the answer to this question depends on the timeframe. The big bang is as big as the universe is today. Before the big bang when all matter was contained in a singularity it was no bigger than a few microns across. Five minutes after the big bang the entire universe was the size of a golf ball. This might not seem big after five minutes, but to go from the size of a few microns to a golf ball is like going from New York to Pluto in 5 minutes.
What is the earliest time in the universe that you can directly observe?
a few hundred thousand years after the Big Bang
How hot was the early universe?
A few minutes into the expansion of the big bang, the temperature was about a billion kelvins
When was the big bang-?
The current estimate for the initial expansion of the universe dubbed "The big bang" occurred about 13.7 billion years ago.
How big was matter at the time of the big bang?
It was so small it could of all fit in a tea cup. my teacher told me. true true. Fill a pin-head, I have read. Ryan92394 says: There was no matter at the time of the big bang. Matter came into existence 380,000 years after the big bang when the universe was cool enough for atoms to form. If your wondering how big the singularity was before the big bang, it was only a few microns in diameter. This is so small that you could not see it with the largest microscope in the world.
