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Explore the formation of the Solar System through the nebular hypothesis, which posits that it originated from a molecular cloud 4.6 billion years ago. The Sun formed at the center, with planets and other celestial bodies emerging from a protoplanetary disk. The text delves into the Solar System's evolution, including planetary migration and the future red giant phase of the Sun. It also touches on historical perspectives and the role of a supernova in the birth of the Sun.
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The Solar System formed from the gravitational collapse of a dense region within a molecular cloud
Planetary Formation
The planets, moons, asteroids, and other celestial bodies formed from the coalescence of material in a protoplanetary disk
Planetary Migration
The planets shifted from their original positions, shaping the current layout of the Solar System
In about 5 billion years, the Sun will enter the red giant phase, potentially disrupting the orbits of the planets and eventually becoming a solitary white dwarf
The modern concept of the Solar System emerged with the acceptance of heliocentrism in the 17th century
The nebular hypothesis has evolved through the incorporation of evidence from various scientific disciplines
Observations of protoplanetary disks and exoplanets have provided support for the nebular hypothesis
The Solar System began with the gravitational collapse of a portion of a giant molecular cloud
The presolar nebula was composed of hydrogen, helium, and traces of heavier elements
A supernova may have played a role in initiating the collapse of the molecular cloud, leading to the birth of the Sun
The protoplanetary disk formed around the hot, dense protostar that eventually became the Sun
The planets and other Solar System bodies formed from the material in the protoplanetary disk
As the Sun matured, it and its sibling stars dispersed, allowing the Sun to begin its solitary journey around the Milky Way galaxy
00
The ______ took shape at the heart of a collapsing mass, with a protoplanetary disk forming around it that eventually led to the creation of planets and other bodies.
Sun
01
The nebular hypothesis, initially put forth in the ______ century by thinkers like Swedenborg, Kant, and Laplace, has been refined by evidence from astronomy and other sciences.
18th
02
Formation of moons in the Solar System
Moons formed from accretion in circumplanetary disks or by capture/impact events.
