What are the lunar maria composed of and how did they form?
1 Answer
Mar 13, 2016
Lunar maria are actually pools of once-molten rock. They were formed while the Moon was still solidifying, when meteors impacting the Moon broke through its thin crust.
Explanation:
The maria actually were seas at one time.
When the Moon first formed, it was hot enough for the surface to be covered by a great ocean of molten rock. As this solidified, on occasion large meteors would hit the Moon and crack the thin, still-forming crust. Then molten rock came to the surface once more, becoming the maria we see today.
Read more anout the Moon and how its features came to be here:
