New studies on the presence and composition of salt glaciers on Mercury suggest more potential for life in extremely harsh environments, similar to Earth settings like Arizona.
On October 1, 2021, a pair of small spacecraft got their first good look at the closest planet to the Sun, revealing the strange process through which Mercury produces its own auroras.
According to new research presented at the Lunar and Planetary Science Conference, Mercury's crust is mostly in the form of graphite, a pure form of carbon that can convert into diamonds after being struck by asteroids. The planet is full of craters due to meteoroids and comets that struck it.