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How do you know that the universe is 13 billion years old?
MountainFlower
This is mainly an extrapolation of the expansion of the Universe. That is to say, the Universe is expanding at such a rate that the galaxies (or the matter that didn't convert to galaxies yet) would have been very close together 13 or 14 billion years ago.
Wiki User
∙ 13y ago
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According to the big bang hypothesis what happened 20 billion years ago?
The universe did not exist that long ago. The universe as we know it is only 13.7 billion years old.
Is the world 4 billion years old or 12 billion?
Earth is about 4.5 to 4.6 billion years old. The universe is about 13.7 billion years old.
Approximatley how old is your universe?
My universe is approximately 13-15 billion years old. How old is your universe?
About how old is the universe?
13.7 billion years old
What do scientist tell us about the age of the universe and the age of the planet?
The universe is 13.7 billion years old & Earth is 4.5 billion years old.
Is the sun older than the universe?
No, the sun is not older than the universe. The universe is estimated to be around 13.8 billion years old, while the sun is only about 4.6 billion years old.
who old the universe?
approximately 13.8 billion years old
How Old is the observable Universe?
13.7 Billion Years Old
How many times older is the Universe than the earth?
Only a little than 4x older actually, the universe is roughly 16 billion years old and Earth is approximately 4.5 billion years old. Of course there are other estimates that the universe is as young as 12 billion years and as old as 20 billion years
Is the earths age 54 billion years?
No. The universe itself is "only" about 13.7 billion years old. Earth is about 4.55 billion years old.
Does the earth have 100 billion years?
No. The universe itself is about 13.7 billion years old. Earth is between 4.5 and 4.6 billion years old.
How old is the universe exactly?
13.5 billion years.
