The ages of the Sun, the planets in the Solar System, and Earth's Moon are generally understood to be around the same age due to their formation from the same protoplanetary disk. Here are the details:
1. **The Sun**:
- Age: Approximately 4.6 billion years (Ga). The Sun formed from the gravitational collapse of a region within a large molecular cloud.
2. **The Planets**:
- **Mercury**: Approximately 4.5 billion years.
- **Venus**: Approximately 4.5 billion years.
- **Earth**: Approximately 4.54 billion years.
- **Mars**: Approximately 4.5 billion years.
- **Jupiter**: Approximately 4.5 billion years.
- **Saturn**: Approximately 4.5 billion years.
- **Uranus**: Approximately 4.5 billion years.
- **Neptune**: Approximately 4.5 billion years.
The planets formed from the accretion of dust and gas in the protoplanetary disk around the young Sun.
3. **The Moon**:
- Age: Approximately 4.5 billion years. The Moon is believed to have formed shortly after Earth, likely as a result of a giant impact between Earth and a Mars-sized body named Theia.
These ages are derived from a variety of methods, including radiometric dating of meteorites, lunar rocks, and the oldest Earth minerals, as well as models of solar system formation.
