I’m not concerned about a future threat (“stated danger” was misleading wording there), more thinking on outside weirdness that might have affected the solar system in its long past.
And thanks for the info about Jupiter and comets. I’ve found a couple of links if anyone else is interested:
Jupiter’s effect on comet and asteroid orbits, in regard to Earth:
And Jupiter has its own comet “family”:
http://astronomy.swin.edu.au/cosmos/J/Jupiter-family+Comets
