Moon's crust underwent resurfacing after forming from magma ocean. A research team took to the lab to recreate the magmatic melt that once formed the lunar surface and uncovered new insights on how the modern moonscape came to be. Moon's crust underwent resurfacing after forming from magma ocean. Source 3n.
The moon has been formed over time just like the Earth has. The biggest part of the moon development came when a large planet collided with earth to make earth the planet it is now and the debris from this collision making up the large moon. With the number of other space debris still out there the moon as well as the earth can be hit again and again by small debris to help add to its mass.
Most of Earth's water was likely present before the moon-forming giant impact. Based on an extensive collection of lunar and terrestrial samples, a new study probing the elusive origins of the moon -- now typically thought to have formed from a collision between a proto-Earth and a solid impactor -- supports theories of a collision with extremely high energy. So high, in fact, that it resulted in nearly complete mixing of materials between the impactor and proto-Earth. Source 8y.
Magma ocean may be responsible for the moon's early magnetic field. Around four billion years ago, the moon had a magnetic field that was about as strong as Earth's magnetic field is today. How the moon, with a much smaller core than Earth's, could have had such a strong magnetic field has been an unsolved problem in the history of the moon's evolution. A new model proposes that a magma ocean may be responsible. Source 9f.
This article was from two years ago, but it's still fascinating! I may have to look up to see if anything has been updated on this topic.
Apollo rock samples capture key moments in the Moon's early history. Volcanic rock samples collected during NASA's Apollo missions bear the isotopic signature of key events in the early evolution of the Moon, a new analysis found. Those events include the formation of the Moon's iron core, as well as the crystallization of the lunar magma ocean -- the sea of molten rock thought to have covered the Moon for around 100 million years after the it formed. Source 4j.