Another article about extinctions – this one attempts to put some periodicity into the history of mass extinctions. The following quote, coming from the link above,
“Scientists … built a computer model of our solar system’s movement and found that it “bounces” up and down through the plane of the galaxy. As we pass through the densest part of the plane, gravitational forces from the surrounding giant gas and dust clouds dislodge comets from their paths. The comets plunge into the solar system, some of them colliding with the earth.”
This is an amazing description. Really dynamic.
Of course, if there is an implication that we can predict the next period of potential danger: the bounce is about 35 to 40 million years long!
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