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jing2178
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Is there an estimate of how long after the big-bang could a solar system similar to ours (ie star and orbiting planets) have first existed?
The first solar system formed approximately 8 billion years after the Big Bang, which occurred around 13.8 billion years ago. This means that the first solar system formed around 5.8 billion years ago.
The first solar system formed through a process called accretion, in which particles of dust and gas in the early universe clumped together due to gravity. Over time, these clumps grew larger and eventually formed planets and other celestial bodies.
The first planet in the first solar system is estimated to have formed around 4.6 billion years ago, which is approximately 1.2 billion years after the formation of the solar system itself.
The first solar system was primarily composed of hydrogen and helium, as these were the most abundant elements in the early universe. However, as the solar system evolved, heavier elements such as carbon, oxygen, and nitrogen were also present and played a crucial role in the formation of planets and life.
The timeline of the first solar system formation is believed to be relatively short compared to other solar systems in the universe. This is because the first solar system formed from the remnants of supernovae explosions, which provided the necessary elements and materials for planetary formation. Other solar systems may have formed later and through different processes, resulting in varying timelines.