2006 SQ372 is a small, comet-like object that is right now closer to the Sun than Neptune. But that's just the closer to the Sun it ever comes. Its orbit is actually similar to that of Sedna, being at its most distant point in the Inner Oort Cloud. While this object is much smaller than Sedna it supports the idea that there are objects whose orbit's major axis reaches to that inner area of the Oort cloud. It also seems to suggest that there is still a lot to find out there, beyond the Kuiper Belt.