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  • Double whammy made the moon

     FateXD updated 2 months, 1 week ago 2 Members · 2 Posts
  • Japo_Japo

    Member
    September 25, 2021 at 2:32 pm

    Asphaug and his colleagues performed computer simulations of the long-ago giant impact and came up with what they believe to be a better fit: Theia and the proto-Earth crashed at faster speeds than previously envisioned, producing an initial “hit and run” collision that set the stage for a slower, accretionary encounter between the two battered bodies about 100,000 to 1 million years down the road.

    “The double impact mixes things up much more than a single event, which could explain the isotopic similarity of Earth and moon, and also how the second, slow, merging collision would have happened in the first place,” Asphaug said.

    Hit-and-run collisions weren’t restricted to the nascent Earth-moon system in those early days. Indeed, such bouncing smashups were probably about as common as accretionary mergers in the ancient inner solar system, the same research team reports in a second new study.

  • FateXD

    Member
    September 25, 2021 at 4:28 pm

    We learned from Physics that Moon was initially part of earth and then it got separated and started revolving around Earth.

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