The Comparison Of Mars And Earth

We can put together the history of Mars’ geology by drawing on our knowledge of Earth’s geology. Meanwhile, the salt lakes of South America’s Altiplano plateau bear a striking resemblance to the Gale Crater on Mars.

When it comes to the atmosphere, the Red Planet’s is thinner than Earth’s, with an atmospheric volume less than 1%. Mars is about half the diameter of Earth. Earth’s atmosphere is mainly composed of carbon dioxide, whereas Venus’s is primarily composed of nitrogen and oxygen. Mars’ atmosphere has changed throughout time, as shown by the presence of ancient lakes and rivers on the planet’s surface.