What is the atmosphere of mars made of?

What is Mars' atmosphere made of? The atmosphere of Mars is about 100 times thinner than Earth's, and it is 95 percent carbon dioxide. Here's a breakdown of its composition, according to a NASA fact sheet: Carbon dioxide: 95.32 percent; Nitrogen: 2.7 percent; Argon: 1.6 percent; Oxygen: 0. read more

The atmosphere of Mars is about 100 times thinner than Earth's, and it is 95 percent carbon dioxide. read more

The atmosphere of Mars is enriched considerably with the noble gas argon, in comparison to the atmosphere of the other planets within the Solar System. Unlike carbon dioxide, the argon content of the atmosphere does not condense, and hence the total amount of argon in the Mars atmosphere is constant. read more

Mars is the "Red Planet" for a very good reason: its surface is made of a thick layer of oxidized iron dust and rocks of the same color. Maybe another name for Mars could be "Rusty." But the ruddy surface does not tell the whole story of the composition of this world. read more