is the moon made out of solid rock or is there lava in side?

Question: is the moon made out of solid rock or is there lava in side?
- Keywords:
  core,
  lava,
  magma,
  moon,
  planet,
  rock
Asked by away521tars on 6 Jun 2025.
- Declan Vogt answered on 6 Jun 2025:
  
  There is evidence that it still has a molten iron core. It started out as a liquid body, essentially splashed out of the earth by a MASSIVE collision with the earth back about 4.5-billion years ago years ago, probably with something about the size of Mars. Immediately after the collision, it was completely molten and has slowly solidified since then, but leaves a small iron core of about 450 km radius.

Question: is the moon made out of solid rock or is there lava in side?