Atmosphere, CO2 on my mind by Daniel Lux5/21/2023 ![]() ![]() ![]() The four outer planets in our solar system are two gas giants, Jupiter and Saturn, and two ice giants Uranus and Neptune. In proximity to the sun, the first four planets are Mercury, Venus, Earth, and Mars, which are also known as the terrestrial planets. As the Sun began its infant life, the flat disc of gaseous and dusty material surrounding it slowly condensed and eventually formed eight planets, amongst them our home, the Earth. A young and bright burning new star, now called the Sun, was born from the death of an old star. Scientists believe that, over time, gravity began its unwavering, relentless work and pulled together a molecular cloud, known as a solar nebula, made of gas and dust - possibly deriving from an exploded star. In cosmology, the Nebular hypothesis (1) is the most widely accepted model for the formation and evolution of our solar system. To begin at the beginning, in the famous words of poet Dylan Thomas, we must go back 4.5 billion years and reach into a past and a darkness that is beyond our field of vision and knowledge. ![]()
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