What they reportedly found was both shocking was it was stunning: another solar system (already known) but the solar system has perpendicular orbits which are the opposite of those found in our solar system. Planets around HD 3167 are understood to perpendicularly orbit rather than the way our planets do in our system — particularly that of HD 3167 c and d.
Astronomy and Physics reports that this is probably because at some point or even now there are interactions happening from a companion planet that we have yet to actually discover. The first planet is believed to be a super-earth about five times the size of our own planet while the outer three are understood to be more Neptune like. Because of the way stars are hanging out around the planet, it, actually does not appear to be possible that the planet would host any form of life (at least not the human kind.)