SOLAR SYSTEM

Detailed explanation-1: -Mercury has almost no atmosphere. Because it is so close to the sun, it can be very hot. On its sunny side, Mercury can reach a scorching 800 degrees Fahrenheit! (But Mercury is not the hottest planet in the solar system.

Detailed explanation-2: -Atmosphere and Weather: Mercury has an extremely thin and non-protective atmosphere. For all practical purposes, the atmosphere is nearly a vacuum. The sparse atmosphere is primarily composed of oxygen, sodium and hydrogen. Mercury’s atmospheric atoms are continuously being lost to space.

Detailed explanation-3: -Atmosphere. Instead of an atmosphere, Mercury possesses a thin exosphere made up of atoms blasted off the surface by the solar wind and striking meteoroids. Mercury’s exosphere is composed mostly of oxygen, sodium, hydrogen, helium, and potassium.

Detailed explanation-4: -Mercury has almost no atmosphere. The planet’s small size means that its gravity is too weak to hold down a normal atmosphere. There is a very thin atmosphere around the planet.

Detailed explanation-5: -The reasons why mercury has no atmosphere is because of its low gravity, hot temperature gases and heavy solar winds. Due to the small size of mercury it has low gravity and it can’t hold atmosphere so that they escape and when temperature is hotter gases in the atmosphere get heated and reach space easily.

Detailed explanation-6: -All of the planets in our solar system, and some of its smaller bodies too, have an outer layer of gas we call the atmosphere.