1956
500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.
Yes. There are at least 90 billion trillion or more planets in the observable universe.
It is very easy to answer- First, I want to tell that , what is a universe? A universe is a limitless space with billion of stars in it. So,lets come to the point.There is no boundary in the universe as it is a very vast space and billion of other universe are also there. I wish that you could understand it
1.6 billion species
In my opinion, yes. There are at least 10 billion trillion Earth-like planets in the observable universe.
Your question needs to be refined; what do you mean by "official"? It is generally agreed by cosmologists (physicists who study the universe, including it's beginning) that there was a beginning but there's little consensus on when. Most estimates are between 13 - 20 billion years ago.
The big bang theory which is a theory of cosmology holding that the expansion of the universe began with a gigantic explosion between 12 and 20 billion years ago
In the beginning, the universe was created. Life was very beautiful. Now we are faced with a universe so big and so old that it defies our imaginations to grasp it. It appears to have begun 15 billion years ago. Our galaxy, alone, has some 100 billion stars, and it is just one of perhaps a 100 billion galaxies, and this immense universe is expanding at an ever increasing rate. This is an awe-inspiring picture, but what does it say about the origin of the universe? Let's imagine that the scientific cosmologists have been creating an ever more detailed and vivid movie of the structure and movement of the universe, and this film, when it is played backwards, makes the universe appear as if it is coming together and beginning in an intensely hot and dense state. But the real question is whether this movie takes us back to the absolute beginning, or very origin of the universe. It doesn't appear to do so because the basic laws of nature, as described by Einstein's relativity, break down as we approach this beginning. It is as if the film runs out and just before we reach the beginning we are dazzled with a blinding white light. And we are faced with the very difficult question: can science find a way to talk about the very beginning of the universe, or is this simply outside its scope?
There are at least 20 billion lenticular galaxies in the universe.
There are at least 15 billion elliptical galaxies in the universe.
There are at least 5 billion irregular galaxies in the universe.
500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.500 billion years ago, planet Earth didn't exist. The Universe didn't even exist for such a long time; the age of the Universe is estimated at about 14 billion years.
The universe will end in 5 billion years time.
The Universe has an age estimated to be about 13.8 billion years.
The estimated number of galaxy mergers, given that there are 100 billion galaxies in the universe, is 100 billion.
The estimated number of satellite galaxies, given that there are 100 billion galaxies in the universe, is 170 billion.
No, because it will be impossible for astronomers to get all 100 billion redshifts for all 100 billion galaxies in the observable universe.