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The Solar System travels alone through the Milky Way in a circular orbit approximately 30,000 light years from the Galactic Center. Its speed is about 220 km/s. The period required for the Solar System to complete one revolution around the Galactic Center, the galactic year, is in the range of 220–250 million years. Since its formation, the ...
There is also a small chance of the Solar System being ejected. [95] [108] The planets of the Solar System will almost certainly not be disturbed by these events. [109] [110] [111] 5.4 billion The Sun, having now exhausted its hydrogen supply, leaves the main sequence and begins evolving into a red giant. [112] 6.5 billion
The first recorded use of the term "Solar System" dates from 1704. [1] [2] Since the seventeenth century, philosophers and scientists have been forming hypotheses concerning the origins of the Solar System and the Moon and attempting to predict how the Solar System would change in the future.
Our solar system could end with its planets being crushed and eaten by the Sun when it dies, ... but our study shows that the behaviour of these systems can evolve rapidly, in a matter of a few ...
The Solar System remains in a relatively stable, slowly evolving state by following isolated, gravitationally bound orbits around the Sun. [28] Although the Solar System has been fairly stable for billions of years, it is technically chaotic, and may eventually be disrupted. There is a small chance that another star will pass through the Solar ...
9.2 billion years (4.6–4.57 Gya): Primal supernova, possibly triggers the formation of The Solar System. 9.2318 billion years (4.5682 Gya): Sun forms – Planetary nebula begins accretion of planets. 9.23283 billion years (4.56717–4.55717 Gya): Four Jovian planets (Jupiter, Saturn, Uranus, Neptune) evolve around the Sun.
Such a region will eventually evolve into an asteroid belt, which is a full analog of the asteroid belt in the Solar System, located from 2 to 4 AU from the Sun. [62] [66] Exoplanets [ edit ]
The Rare Earth hypothesis argues that planets with complex life, like Earth, are exceptionally rare.. In planetary astronomy and astrobiology, the Rare Earth hypothesis argues that the origin of life and the evolution of biological complexity, such as sexually reproducing, multicellular organisms on Earth, and subsequently human intelligence, required an improbable combination of astrophysical ...