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originally posted by: scraedtosleep
a reply to: machineintelligence
If it's true I can't help but wonder about how right at the time we would need it most the human race has developed the tech that could save us.
In a recent paper (news release here) Lisa Randall and Matthew Reece propose that a dark matter disk coinciding with the galactic plane together with the solar system's oscillations through the galactic plane could explain the 35 million year periodicity in mass extinctions. They propose that the solar system passes through this dark matter disk in the galactic plane every 35 million years, disrupting bodies in the Oort cloud …
Dec 09, 2012 · In addition, the Sun oscillates up and down relative to the Galactic plane approximately 2.7 times per orbit. This is very similar to how a simple harmonic oscillator works with no drag force (damping) term. It takes the Solar System about 225–250 million years to complete one orbit around the Galaxy (a Galactic year),...
This Anniversary our location could be at the bottom of the sine wave oscillation instead of the top position with the resulting closeness of the interGalactic high energy rays which are more intense at the outer fringes of the Galaxy disc...
In addition, the solar system moves perpendicular to the galactic plane in a harmonic fashion, with a period of 52 to 74 million years and an amplitude of ~49 to 93 pc out of the galactic plane. (The uncertainties in the estimates of the period and amplitude of the motion are caused by the uncertainty in the amount of dark matter in the galactic disk.) The Sun and planets passed through the galactic plane about 2-3 million years ago, moving "northward."
What is your motivation? Why do you think exploring the edges of human understanding of our universe is pointless unless we can draw conclusions right now?