Its too small for its gravity to hold on to it.
Mercury's atmosphere is so thin that it is barely detectable.
no.
no
Mercury and the Moon do not have significant atmospheres. Mercury's thin exosphere mainly consists of atoms blasted off its surface by the solar wind, while the Moon has virtually no atmosphere, making them both airless bodies in our solar system.
Zero
mecury
Mecury thermometers
The Swift Planet.
No.
mecury
its the first planet
mecury and venus