How many advanced civilisations existed before US?

NASA Claim “Dozens” Of Advanced Civilisations Existed Before Us. A new NASA study reveals that dozens of ancient advanced civilisations much like ours once existed on Earth, but they all came to an abrupt end.

Will civilization ever collapse?

If we look back in history, 3000 – 5000 years, we will find a historical record that clearly shows us how advanced and complex civilizations were just as susceptible to collapse as we are today. This ongoing pattern has led researchers to question the future existence of society and civilization as we know.

How old is the human civilization on Earth?

The earth produced human intelligence from life on a planet 4.5 billion years old. Astronomers are aware that the galaxy and many of its stars are 13.5 billion years old. It is quite reasonable that many civilizations have emerged, and perhaps passed.

How many years ago did humans first appear on Earth?

Had a sentient being, living in an advanced civilization, existed 4 – 4.5 billion years ago, would we have found any evidence of its existence… Modern humans appeared 200,000; civilization 10,000; and advanced technology 500 years ago.

Is humanity’s advanced civilization possible?

In our study, we found that each had the possibility of making it into future sediments. Ironically, however, the most promising marker of humanity’s presence as an advanced civilization is a by-product of one activity that may threaten it most.

How far back do we know about the development of civilization?

When it comes to direct evidence of an industrial civilization—things like cities, factories, and roads—the geologic record doesn’t go back past what’s called the Quaternary period 2.6 million years ago. For example, the oldest large-scale stretch of ancient surface lies in the Negev Desert.

Can we find ancient civilizations on other planets?

Instead, their goal is to discover the ways that we might find the signs of ancient civilizations on other planets. It might seem obvious that we’d see the signs of such a civilization — after all, there were dinosaurs 100 million years ago, and we know that because we’ve found their fossils.

Will we ever find evidence of a Silurian-style civilization on Earth?

By the same token, if some earlier civilization existed on Earth millions of years ago, we might have trouble finding evidence of it. The discovery of physical artifacts would certainly be the most dramatic evidence of a Silurian-style civilization on Earth, but Frank doubts we’ll ever find anything of the sort.