About 206,000,000 results
Open links in new tab
  1. Age of Earth - Wikipedia

    Holmes published The Age of the Earth, an Introduction to Geological Ideas in 1927 in which he presented a range of 1.6 to 3.0 billion years. No great push to embrace radiometric dating …

  2. How Old Is Earth and How Did Scientists Figure It Out?

    Apr 8, 2025 · If you look up the age of Earth on science websites and in publications, you'll generally find an estimate of 4.54 billion years, plus or minus 50 million years.

  3. How Old Is the Earth? How Do We Know? - Science Notes and ...

    Jul 8, 2023 · Scientists estimate the age of the Earth is approximately 4.54 billion years, plus or minus 50 million years. This estimate is for the age of the Earth’s accretion into a planet with a …

  4. How Did Scientists Calculate the Age of Earth? - Education

    Oct 19, 2023 · Scientists have calculated the age of our planet to be approximately 4.5 billion years. But how did scientists determine that age? The answer is complicated: It involves …

  5. How Old Is Earth? | Britannica

    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, …

  6. How old is Earth? Our world's surprising age, explained

    Jul 5, 2023 · The Earth is 4.54 billion years old, give or take 50 million years. This means that the Earth is under half the age of the Milky Way Galaxy, 11-13 billion years old,and around a third …

  7. What is the scientifically accepted age of the earth?

    Jun 21, 2025 · How Do We Know the Earth’s Age? Determining the Earth’s age is a complex but fascinating endeavor, relying primarily on radiometric dating techniques. These techniques …

  8. How old is the Earth? - The Planetary Society

    Nov 14, 2023 · The Earth is thought to be about 4.54 billion years old. Learn more about how it formed, and how we know when this all happened.

  9. Age of the Earth - Geology (U.S. National Park Service)

    Oct 3, 2018 · So far scientists have not been able to determine the exact age of the Earth directly from Earth rocks because Earth’s oldest rocks—from early, primordial crust—have been …

  10. How old is the earth according to science? - California ...

    Jun 16, 2025 · The age of the Earth, approximately 4.54 billion years, is a cornerstone of modern geology and planetary science. This age estimate is based on a wealth of scientific evidence, …