Riding in a star-sized mothership, Sargeras rushed to the place reported by the constellar. From the position of the star map, it was tens of thousands of light-years away from where he was.
This distance was nothing to Sargeras. He could travel the universe by himself, but he would occasionally use transportation.
Over the long years, the titans of the Pantheon had possessed equally powerful strength in the mystical and scientific fields. In fact, for any creature with a divine spark, spying on the underlying laws of the world was an instinct. It was especially so for titans. To them, be it the mystical or scientific sides, they were the truths of the universe, and these truths were all visible in their eyes.