I don't know what this means but it sounds VERY IMPORTANT. Is it?

It is 3000 light years, and to me, it is of no importance other than a minor curiousity.

Hmmm. Yes, I would think 3000 light-years, not 3000 miles, too although I did not know of this find.

It might not be very significant unless it reveals some effect worth further investigating; but still of interest, given that the Milky Way is our own galaxy.

By way of scale, 3000 miles is about the average width of the North Atlantic and 1/83 the distance from the Earth to the Moon.

Our nearest star other than the Sun of course, is about 4.5 light-years away. That's not far, astronomically. (The Sun is only about 8.33 light-minutes away.)