This age is determined by various methods, including:
* Radiometric dating of meteorites: Meteorites are remnants of the early solar system and contain radioactive isotopes that decay at a known rate. By measuring the ratio of parent to daughter isotopes, scientists can determine the age of the meteorite and, by extension, the age of the solar system.
* Dating of the oldest rocks on Earth and the Moon: The oldest known rocks on Earth and the Moon are also about 4.6 billion years old, providing further evidence for the age of the solar system.
While the nebular model describes the formation of our solar system, it's important to note that it doesn't pinpoint the exact moment the cloud started collapsing. The collapse likely happened over a period of time, but the best estimate for the age of our solar system is 4.6 billion years.
