Moon Existence

An animation about one theorie of the existence of the moon.


Giant Impact Hypothesis according to Wikipedia:

The prevailing hypothesis today is that the EarthMoon system formed as a result of a giant impact. A Mars-sized body (labelled "Theia") is hypothesized to have hit the proto-Earth, blasting sufficient material into orbit around the proto-Earth to form the Moon through accretion. As accretion is the process by which all planetary bodies are therorized to have formed, giant impacts are thought to have affected most if not all planets. Computer simulations modelling a giant impact are consistent with measurements of the angular momentum of the EarthMoon system, as well as the small size of the lunar core. Unresolved questions regarding this theory concern the determination of the relative sizes of the proto-Earth and Theia and of how much material from these two bodies formed the Moon. Recent oxygen isotope composition analysis of the Moon shows its oxygen isotope composition is more similar to the Earth's than this hypothesis would suggest.

Category:

Science & Technology

Tags:

• Moon
• existence
• Giant
• Impact
• Hypothesis
• Earth
• science
• ancient

[TheSpiritof1969]

it does not explain how the moon acheived orbital velocity.