Many year ago Mars looks similar to Earth.
The martian surface is an alien yer somewhat familiar landscape. At times find mistaking images of Mars surface for the image of the earth. There are obvious reasons behind this when they begin to understand the history of the Red Planet. Although Mars is dry and barren today, it wasn't always that
many types of minerals are present.
The martian surface is an alien yer somewhat familiar landscape. At times find mistaking images of Mars surface for the image of the earth. There are obvious reasons behind this when they begin to understand the history of the Red Planet. Although Mars is dry and barren today, it wasn't always that way. Around 3 billion years ago, Mars almost looked like Earth. The atmosphere had high amounts of oxygen, and liquid water flowed across the surface as streams, rivers, lakes, and perhaps even oceans.
Evidence for water on Mars is Widespread. Martian rovers have discovered direct evidence of water in the form of rocks and minerals. The Martian surface is dominated by basalt: igneous rocks composed of olivine, plagioclase, and pyroxene. When these rocks come in contact with water, the water can alter the rocks both physically and chemically. These new minerals are referred to as hydrated minerals. When the basalt on Mars comes in contact with water for a period of time, minerals such as gypsum, sulphate, carbonate minerals and clay minerals are produced.
Scientists have discovered all of these minerals on Mars. The opportunity rover snapped an up-close image. Knowing that these can only form in the presence of water, we have very good reason to believe liquid water did exist on Mars. In addition to chemical evidence, orbiting satellites and rovers have uncovered stunning physical structures that likely formed from flowing water.
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