How old is the world?
Our world has existed since time immemorial. Every schoolboy knows this. Billions of years on Earth there is life, which over time develops and changes. How many years to the world actually, we will tell in this article.
How old is our universe
From the moment of the Big Bang, namely this date serves as a record of the beginning of life of our Universe, about 14 billion years have passed, but this figure is rather relative. In general, scientists are of the opinion that our Universe has existed for at least 12, but not more than 20 billion years. It should be noted that our Universe is at least 2 times older than the Sun and the Earth.
How old is our solar system
According to the generally accepted hypothesis today, the formation of our solar system began about 4.6 billion years ago. This process began with the gravitational compression of a certain part of a huge interstellar gas-dust cloud. Most likely this cloud was the size of a few light years. It became the progenitor for several stars, including our Sun.
How old is our planet
The age of the Earth is slightly less than the age of our solar system and it is about 4.54 billion years. These data were obtained using radioisotope dating of terrestrial samples and meteoritic matter. They were obtained using the uranium-lead method, which was developed by Claire Patterson. This figure corresponds to the age of the oldest terrestrial, lunar and meteorite samples and it has not changed since 1956.
How old is mankind
There are several theories that count the different ages of mankind. Consider a few of them:
- A reasonable man. If we consider the origin of humanity since the appearance of the species Homo sapiens, then according to scientific research, its age ranges from 200 to 340 thousand years. That is, humanity is quite young.
- Genus Homo. As mentioned above, the species Human Reasonable is relatively young, but the genus Homo itself, which includes the Skillful Man, exists about 2.5 million years. It was such an age that scientists established when examining the skull of a teenager from Tanzania, discovered in the Olduvai Gorge in 1960.
- Creationism. The theory of creationism has been and remains the main competitor of the theory of evolution.According to her, all life on Earth, including man, was created about 7.5 thousand years ago.
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