An international team of researchers at the Lawrence Livermore National Laboratory claimed to have found evidence suggesting that Jupiter, the fifth planet from the Sun, is the oldest planet in the solar system.
As per the new study, Jupiter likely came into existence merely one million years after the Sun formed, and roughly fifty million years before our Earth came into existence.
Lead researcher Thomas Kruijer said, “We do not have any samples from Jupiter, in contrast to other bodies like the Earth, Mars, the moon and asteroids. In our study, we use isotope signatures of meteorites (which are derived from asteroids) to infer Jupiter’s age.”
Kruijer added that Jupiter’s solid core formed even before the solar nebula gas got dissipated, and this theory was consistent with the core accretion representation for giant planet formation.
In other words, our sun ignited into a star nearly 4.6 billion years ago, and Jupiter came into existence some 4.5 billion years ago.
The new study was detailed in the most recent edition of the Proceedings of the National Academy of Sciences.