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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.
The Encounter Theories of the Origin of the Solar System. In K. Lang & O. Gingerich (Ed.), A Source Book in Astronomy and Astrophysics, 1900–1975 (pp. 182-191). Cambridge, MA and London, England: Harvard University Press.
The Encounter Hypothesis (Buffon 1745) Scenario: 1. A “near miss” encounter occurs between the Sun and a passing star. 2. Material is pulled from the stellar surfaces by tidal forces. 3. Material cools and condenses to form planetary bodies. Principal Shortcoming: This Requires a highly unlikely event
This classical big bang theory describes how the expansion of the universe is slowed down by the gravitational pull from, and the pressure exerted by, the rest of the universe. The shaded region in the Figure is a sphere of radius R(t) = a(t)r.
19 Σεπ 2018 · The Dynamic Universe theory is a holistic description of the observable physical reality. Like the Copernican revolution, the DU creates a system perspective allowing straightforward...
11 Ιουλ 2016 · We explore the dynamics and evolution of the Universe at early and late times, focusing on both dark energy and extended gravity models and their astrophysical and cosmological consequences.
The Dynamic Universe theory is a holistic description of the observable physical reality. Like the Copernican revolution, the DU creates a system perspective allowing straightforward mathematics and a conceivable cosmological picture of the universe — and gives precise predictions to observables without dark energy or other artificial parameters.
