The main evidence is from radioactive materials on Earth, as well as their by-products.
what evidence did ptolemy have for the solar system
Our solar system is almost 5 billion years old.Our solar system is almost 5 billion years old.Our solar system is almost 5 billion years old.Our solar system is almost 5 billion years old.
The Solar System is about 4.6 billion years old.
Universe: About 13.8 billion years ago.Solar System: About 4.6 billion years ago. More details at the Wikipedia articles "Age of the Universe" and "Age of the Earth". The details include a discussion about the evidence.
They don't. Do some reading on the Solar System (for example, in Wikipedia); the current estimate for the age of the Solar System is between 4-5 billion years.They don't. Do some reading on the Solar System (for example, in Wikipedia); the current estimate for the age of the Solar System is between 4-5 billion years.They don't. Do some reading on the Solar System (for example, in Wikipedia); the current estimate for the age of the Solar System is between 4-5 billion years.They don't. Do some reading on the Solar System (for example, in Wikipedia); the current estimate for the age of the Solar System is between 4-5 billion years.
4.6 billion years ago or 5 billion years if you round up. :)
The solar system is estimated to be approximately 5 billion years old.
well, there is only one star in OUR solar system, we call it the sun; but there are about 100 BILLION stars in the milky way galaxy, of which our solar system is a part of
About 4.6 billion years.
4.6 billion
six billion
The age of the Solar System HAS TO BE at least as much as that of the oldest rocks found on Earth, other planets, or asteroids (if you assume that those rocks come from the Solar System) - and that's what has been found. And that's the approximate age of the oldest rocks found. The main methods used rely on radiometric dating. For more information, check the Wikipedia (or other sources) for:* Age of the Earth* Radiometric dating