What is the connection of encounter hypothesis and nebular hypothesis?
Answers
Answer:
Explanation:
One of the earliest theories for the formation of the planets was called the encounter hypothesis. In this scenario, a rogue star passes close to the Sun about 5 billion years ago. Material, in the form of hot gas, is tidally stripped from the Sun and the rogue star. ... A second theory is called the nebular hypothesis.
➠ Encounter hypothesis was a 19th century idea the solar system was formed when another star passed near enough the Sun to drag material out of it that formed the planets. Two problems: such gases would immediately expand to infinity instead, and the theory would mean probably no more than four planetary systems in the entire galaxy, which we now know has billions of planetary systems.
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➠ The nebular hypothesis goes back to Kant (18th century) and with modern revisions says gas clouds (nebulas) condensed under gravity and through a series of steps formed the Sun and planets. Modern observations have actually spotted such transformations.