How scientists calculated the age of our planet
In short: Explore the scientific journey to determine Earth's age. This video examines the methods used to date our world and the key figures who contributed to these geological discoveries.
The best current estimate places Earth's age at approximately 4.6 billion years. To put this vast span into perspective, if a human life lasted 75 years, Earth's history would encompass more than 61 million such lifetimes.
The planet's history is marked by profound shifts, including an initial period comprising the first fifth of geologic time where no life existed. Since then, life has transitioned from single-celled organisms to complex multicellular forms, eventually altering the planet's atmosphere and surface through biological processes.
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Sources
- Summary by Intellect · source: How Old is the Earth?
- Also: www.britannica.com — How Old Is Earth? | Britannica
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