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19 de oct. de 2023 · In 1862, a famous Irish physicist and mathematician, Lord Kelvin, estimated that Earth was between 20-million and 400-million years old. While that is an enormous span of time, even an age of 400 million years would make the planet quite young in relation to the rest of the universe.
The age of Earth is estimated to be 4.54 ± 0.05 billion years (4.54 × 10 9 years ± 1%). This age may represent the age of Earth's accretion, or core formation, or of the material from which Earth formed.
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!
- John P. Rafferty
20 de oct. de 2013 · 7 min read. How Science Figured Out the Age of Earth. For centuries scholars sought to determine Earth’s age, but the answer had to wait for careful geologic observation, isotopic...
The Earth is very old. But how old, exactly? And how can we know with any degree of confidence? As Henry Reich describes in the video above, the process of scientifically estimating the age of the...
Age of Earth Collection. Earth is estimated to be 4.54 billion years old, plus or minus about 50 million years. Scientists have scoured the Earth searching for the oldest rocks to radiometrically date. In northwestern Canada, they discovered rocks about 4.03 billion years old.
Los geólogos y geofísicos modernos consideran que la edad de la Tierra es de unos 4540 millones de años ± 1 %. Esta edad había sido determinada mediante técnicas de datación radiométrica de material proveniente de meteoritos y es consistente con la edad de las muestras más antiguas de material de la Tierra y de la Luna.
