via SyFy
What is now the atmosphere of Mercury was created by the ghosts of that magma ocean. Even the atmosphere lost mass from all those particles flying everywhere, though not much. As researcher Noah Jäggi of the University of Bern found, it was really through vaporization of the magma ocean that the scorched planet lost most of its mass. There wasn’t really that much stuff that fled the atmosphere. Jäggi recently led a study published in The Planetary Science Journal.
Source: https://blog.adafruit.com/2022/01/11/mercurys-magma-ocean/
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