Reposted by Zbyněk
The Moon's two hemispheres look like two different worlds. Why is one covered by volcanic plains while other remained heavily cratered? The answer takes us back 4.5 billion years—to a magma ocean, giant impacts, and one of planetary science's greatest mysteries.
chmee2.substack.com/p/why-the-mo...
chmee2.substack.com
Why the Moon Has Two Different Faces?
The Moon's two hemispheres couldn't look more different. One is covered by vast volcanic plains, the other by ancient cratered highlands. Why did two sides of the same world evolve so differently?
