like it would be abt planets like this "invading" earth and the sky would be pitch black for eons.
more erratic stars or planets would show up, including little black holes that would appear for unpredicted amounts of times and suck up anything in an also unpredicted radius (could be 3 to 10000 feet, or more)
and the random planets had unique effects on earth; i remember having dreams abt alive planets when i was younger, or an "alive solar system"; heres an "i aint reading allat" version : bad space objects slowly destroy earth and make it a living hell.
