In many ways, Venus is similar to Earth. However, their similarities do not extend beyond their physical properties, for example their atmospheres differ greatly from each other. Venus is said to have an atmospheric pressure of 92.1 barometers (Adams, D. Et al., 1994 p.126), which is obviously 92 times higher than that of Earth which is 1.01 barometers (Adams, D. Et al., 1994 p.126). ) at sea level. Despite this comparison with the atmospheric pressure of the Earth, Venus has an unusual atmospheric composition. Scientific research into the structure of Venus was once thought to be hampered by the thick clouds that form its atmosphere. This is why, for many years, scientists have studied its composition and thus unveiling the clouds that hinder such analysis. It would then be imperative to become familiar with the chemistry of this atmosphere to understand its composition. In order to obtain this latest information, a Russian spacecraft – Venera – was sent to Venus to carry out investigations. The Venusian atmosphere was later found to have an unusual atmospheric structure consisting of two distinct tropospheric zones that carry out distinct chemical reactions. Such a structure is as follows: the upper troposphere is exposed to the sun's rays and therefore carries out a chemical reaction linked to dissociation while the lower troposphere is protected from solar light and therefore retains heat and carries out chemical reactions linked to dissociation. heat. In conclusion, such reactions occurring with the abundance of carbon dioxide (CO2) in the Venusian troposphere are vital for creating species such as nitrogen oxides (NOx) and producing sulfuric acid droplets (H2SO4). ) which make up the veiling clouds. Venus.As said before, Venus shows...... middle of paper ......m. From this section he was also informed that the surface temperature of Venus is extremely high, giving it its unique property of flaky crust compared to the hard solid of its sister planet. Again, its temperature is so high that it absorbs all existing water and has no chance of living on its planet. Interestingly enough, Venus has no mountains, yet more than 80% of its plain is filled with volcanoes and lava. . The craters that identify its surface also tell the reader the age of Venus. Venus is about 500 million years old (NASA. 2007), scientists learned this by studying the depth and consequences of debris impact on the surface of Venus. All the properties and similarities of Venus with Earth help scientists unveil the mysteries and fantastic properties. of this planet and now we can rejoice in such knowledge.