i don't really know.
But I think the answer is....
The lunar rocks brought back during the Apollo missions were found to be 4.6 billion years old. Because these rocks have hardly changes since they formed, scientists know the solar system itself is about 4.6 billion years old.
I don't know if that is the right answer I got it from a book.
Update: That's true but in this case, we're talking about lunar rocks and Mercury. Not the solar system, but they are similar. So the answer is that Mercury and the moon (where the lunar rocks came from) are both inter terrestrial planets and so they were created at the same time almost. Therefore, if you determined an age from one of those (the moon or Mercury), it'd be the same or very similar to the other one.
Bootyhole
Mercury has a rocky surface, it is the closest planet to the sun in the solar system (however not the hottest). There are only 4 gas giants in our solar system, (Jupiter, Saturn, Neptune and Uranus) how ever astronomers have discovered many other gas planets orbiting other stars in the galaxy. Hope this helps you:)
early astronomers thought that Mercury was a seprate planet to another because it was so small
Mercury.
Mercury
Bootyhole
Mercury has a rocky surface, it is the closest planet to the sun in the solar system (however not the hottest). There are only 4 gas giants in our solar system, (Jupiter, Saturn, Neptune and Uranus) how ever astronomers have discovered many other gas planets orbiting other stars in the galaxy. Hope this helps you:)
early astronomers thought that Mercury was a seprate planet to another because it was so small
cause they can't go there
mercury does have a solid surface
Mercury
The planet Mercury has the most similar cratered surface compared to the moon.
Craters.
Mercury.
Mercury
Mercury is the planet that most resembles the Moon in visible surface features and atmosphere. It is a grey planet that has many craters and a thin atmosphere.
No. Mercury's surface gravity is less than that of Earth, but it will still hold you to the surface.