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Hello science teachers and Discovery channel addict - I was fascinated to learn recently that our bountiful earth is actually a bit of a hobgoblin, who ate her own twin.

According to the great collision theory, our Proto - earth was circling the sun about 4.5 billion years ago and sharing its orbit with a sister planet called PHEAA. As fate would have it, the influence of other nearby planets eventually through the sister planet off it's stable course, and careening into Gaia paren the name of our Proto earth). The impact had many consequential results, including the eventual creation of one or two satellites which in time collided themselves and formed our moon.

Additionally, the Proto planet that hit us, gave several important gifts which profoundly affected biogenesis on earth. Specifically, bringing great amounts of water to our planet, and changing the composition of our core, which could have sustained the. Our core is liquid and thus throws magnetic fields, wh...See More
Bob R/CA Yikes, I see this chatboard needs a tweak or two to better perform with smartphone browsers.
Jan 30, 2020


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