The orbit of the solar system has moved from "below" the galactic plane and is now in alignment with the disk of the Milky Way. Eventually the solar system orbit will go 'above' the GALACTIC plane in its own frequency sine wave orbit around the galactic center.

Seems to me there is more stuff in this region of alignment of the galactic plane so we should expect a lot more stuff to be thrown out of its prior position from within and without our solar system and create more hits and near misses than in the last 600 thousand years.

In other words the Earth is now in a region of awful traffic after having been drivng around in the boonies for half a million years.