Here is what is more likely and might be a bit scary.
Our solar system, as it orbits the Milky Way, oscillates in a sine wave vertically thru the plane of the Galaxy.
As we pass thru the center of the plane, it is theorized that we should expect more interstellar debris passing us.
This is one of the theories which they use to explain the geological history pattern for planetary bombardment.
I’m not sure which part of the cycle we are in but its a possible explanation.
I’ve often suspected that the whole Mayan calendar thing was tied to just that, we’re headed into a period of greatly increased asteroids. Their ages ended when they did or do, because in the past ages were literally ended by bombardment.
We passed thru the Galactic plane in December 2012................