There is no scientific evidence to suggest that any planet in our solar system is rich in gold. Gold is a heavy element that is primarily formed through supernova explosions and subsequent processes in the universe. While small amounts of gold can be found on Earth and other celestial bodies, it is generally not present in significant quantities.
On Earth, gold is relatively rare and is mainly found in small concentrations within the Earth's crust. It is typically extracted from mines or obtained through other mining processes.
Regarding other planets in our solar system, there is no conclusive evidence of significant gold deposits. The composition of other planets, such as Mercury, Venus, Mars, Jupiter, Saturn, Uranus, and Neptune, does not indicate abundant gold reserves.
It's worth noting that the outer cores of some planets, like Earth, are believed to contain significant amounts of gold, but extracting it from these locations would be incredibly challenging, if not impossible with our current technology.