Differences in Atmosphere of Venus, Earth and Mars

Differences in Atmosphere of Venus, Earth and Mars

Introduction

All the planets are different from each other in terms of their atmospheres and other related aspects. However at the beginning, many of them started out in same manner. It is said that the Venus, Earth and Mars are the sibling planets due to the similarity in their volcanoes that are massive, surfaces that are weathered, interiors that have been evolved thermally and chemically. Moreover the clouds are present in the atmospheres of all these planets are also similar in that they circulate with response to the Sun's thermal forcing. This circulation is modulated due to the effects of the spin of planets and friction due to surface. Despite all these similar characteristics, these planets that are Venus, Earth and Mars all show diversity in their various atmospheric characteristics like differences in their outer layers volatility. The paper has discussed the differences in the atmospheres of Mars, Earth and Venus.

Research Statement

Many researchers believe that the three planets Venus, Earth and Mars started out in a similar way, with similar atmospheres. However with the passage of time, there has been observed diversity in their atmospheric characteristics that is mainly due to the outer covering volatility and other related characteristics.

Discussion

According to the scientists, Venus, Earth and Mars all started out in same manner however due to their differences in the distance from sun made them having various changes that give rise to number of differences and thus present atmospheres of all these planets largely differ. In the case of Venus, there was extensive carbon dioxide locked in its rock and was presence of water was also found to be there million years ago. Afterwards due to the green house heat surface, carbon dioxide was baked out of the rocks due to which further greenhouse gases were produced. The baking of carbon dioxide gas out of the rocks give rise to more greenhouse gases and the whole atmosphere of Venus was filled with the carbon dioxide as a reaction (Ingersoll, 1992).

Thus the change that occurred in the atmosphere of Venus was at the start, it was warmer but due to these changes, it becomes completely hot and the chances of living organisms being there was reduced to zero. In case of Earth, the atmosphere is considered to be directly linked with its diverse biology that is rich in oxygen and nitrogen. The presence of fresh water and oceans play an important role in this diverse biology and in forming the climate of Earth (Lammer, 2003).

However if this atmosphere of Earth is compared with Venus, it is endowed with rich Carbon dioxide atmosphere that is almost 100 times more than Earth, extensively low levels of water endowment having surface temperature of 450 K that is warmer as compare to the atmosphere of Earth. The atmosphere of Mars is little bit similar to that of Earth that is based on atmosphere rich in Carbon dioxide having a surface ...