I believe the thread poster had something like this in mind, motion of macroscopic bodies, not some gas jets etc that are made up of particles of matter<br /><br />as to this amazingly fast moving star but what is more amazing still is that apparently 99.99999% of macroscopic objects in universe seem to be moving as a rule at only relatively pedestrian speeds, why is that, I find that almost equally amazing<br /><br />the logic is that the odds for this fast star to colide with another star (and thus get slowed down) must be overwhelmingly small (basically it won't happen except in some extremely rare case), and given the stupendous number of stars out there in universe and eons of time in which most of what can happen does happen, the likelihood is that this fast star should most certainly no be alone in going that fast, there should be many such fast stars out there and the question then is what slowed them down because over eons such fast stars should accumulate and they should be numerous enough today to comprise a fairly sizable class of fast objects on their own out there (that is if you wanted to make a separate class out of them in the first place, this is just for the sake of the argument), similar to other classes of objects out there (like if neutron stars are out there, it would be unlikely that we would know only about one such object of that kind)<br /><br />vanDivX <div class="Discussion_UserSignature"> </div>