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What does the big bang theory suggests happened 20 billion years ago?
Wiki User
∙ 13y ago
that 20 billion years ago there was nothing in space but an empty space but then you ask yourself "what is nothing?" I dont know about you but i cant myself visualize noting, can you? No one really knows.
Wiki User
∙ 13y ago
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When Do scientists believe your solar system was formed?
by a theory of the BIG BANG explosion and the HELIOCENTRIC theory,that until now is being believe
How many million years are in a billion years?
There are 1000 sets of 1 million years in a billion years.
What kingdom has existed for 3 billion years?
Bacteria.
The longest distance light can travel since the beginning of the universe is known?
Well, it's complicated.The universe is about 13.8 billion years old. In that time, in a vacuum (and while interstellar and even intergalactic space isn't a perfect vacuum, for these purposes it's close enough), light could have travelled 13.8 billion light-years. That's pretty straightforward.Where it becomes non-straightforward is in determining the radius of the observable universe. If there's only been time for light to go 13.8 billion light-years, then the edge of the observable universe should be 13.8 billion light-years away, right?Wrong.Because the universe is expanding, light that started on its way 13.8 billion years ago got a certain percentage of its traveling done when the universe was smaller. It turns out that the earliest thing we can see is the surface of last scattering or the cosmic microwave background radiation (we can't see past that because it's effectively opaque), which is currently about 46 billion light years away. (The theoretically observable universe is actually slightly larger than that, since the decoupling event when the universe became non-opaque happened when the universe was already about 380,000 years old).So, while light can only possibly have gone 13.8 billion light years, light that started on its way to us 13.8 billion light years ago and is reaching us now came from objects that are "now" about 46 billion light years away.
What is gas cloud theory?
a theory of you to pay attention in class and do your home work but theanswer is hydrogen gas and all this Astronomers have discovered a giant reservoir of cold hydrogen gas - the raw material of stars - while scanning images of deep space that are 12 billion years old. This suggests that galaxies like our own could have formed a lot earlier than previously thought.Because light takes time to travel through space, images from far away give information about what happened a long time ago. The presence of this giant gas cloud 12 billion light years away defies current theory about how and when existing galaxies formed.A team from the Netherlands, the US, UK and Australia have published their discovery in this week's Nature."It's primed and ready to go," said Geraint Lewis of the Anglo-Australian Observatory of the reservoir of gas, which is roughly the size of the Milky Way. "If it could all turn into stars at once we'd have an instant galaxy".The current theory is that galaxies form over many billions of years as a result of smaller galaxies merging. This is a process observed today - for example, the Milky Way is in the process of consuming the Magellanic Clouds."We were shocked to see such a large gas cloud so early in the Universe's history," said Lewis.Its presence suggests that large galaxies could have formed more rapidly than would be achieved through the gradual merging of smaller galaxies."This thing is at the edge of the dark ages, before the first stars in the universe were born," said team member Chris Carilli from the National Radio Astronomy Observatory in the US.
The big bang theory suggests that the universe is how old?
About 14.5 billion years old.
The most recent theory that upholds the big bang theory but suggests a sudden expansion after the bang is called the?
The most recent theory that upholds the Big Bang theory, but suggests a sudden expansion after the bang, is called the inflation theory. Earth is 4.54 billion years old.
When do scientists think the Big Bang theory happened?
The Big Bang theory was proposed (happened) in the middle of the 20th Century.The theory, and the work exploring it, suggest that the Big Bang happened about 13.7 billion years ago.
When big bang happened?
In general Big Bang theory puts our currently known universe at about 13 billion years old (that's 13,000,000,000 years.)
How old does scientific evidence suggest the Earth is?
== == The age of the Earth is roughly 4.6 billion years.
What happened to the earth 700 billion years ago?
Earth did not exist 700 billion years ago, nor did the universe. Earth is about 4.6 billion years old.
When do we believe the big bang happened?
Approximately 13.8 billion years ago.
What happened to Big Star?
IT will burn out after 50 billion years!
The big bang hypothesis suggests that 20 billion years ago?
Cosmologists now conclude that the Big Bang (BB) occurred 13.7 billion years ago. Since it is meaningless to speak of something happening "before" the BB -- there was no time or space to have a "before" -- BB Cosmology makes no statement about what happened that long ago.
When did the big bang theory take place?
13.75 billion years ago
When did the first galaxies and stars develop?
About 13-14 billion years ago. Cosmologists are not in agreement as to what happened the first few million or billion years, but most agree that the age of our Universe is about 15 billion years.
What the explanation of how the universe formed a billion years ago called?
The Big Band Theory
