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Life on Earth is believed to have originated around 3.5 billion years ago, as evidenced by the discovery of microfossils and biomarkers in some of the oldest rocks on the planet.
The age of Earth is estimated to be 4.54 ± 0.05 billion years (4.54 × 109 years ± 1%). [1] [2] [3] [4] This age may represent the age of Earth 's accretion, or core formation, or of the material from which Earth formed. [2] .
Oct 19, 2023 · Towering mountains, deep oceans, vast continents, and sprawling glaciers—they make Earth what it is today. Even more impressive, by some people’s standards, is the age of Earth. Scientists have calculated the age of our planet to be approximately 4.5 billion years.
In numerical terms, the best estimate of Earth’s age so far is that it is close to 4.6 billion years old. But what does that mean exactly? If one uses a human lifetime of 75 years as a measure, the time between Earth’s formation and today has taken more than 61 million human lifetimes!
May 16, 2014 · Based on the very old zircon rock from Australia we know that the Earth is at least 4.374 billion years old. But it could certainly be older.
Discover how scientists estimate the age of Earth and what clues they use to unravel its ancient history.
Aug 20, 2021 · Scientists have calculated that Earth is 4.54 billion years old, with an error range of 50 million years.
