All rights reserved. No part may be reproduced in any form without the explicit permission of the author. We will start with some facts about quasars.
Quasars are the brightest and most distant objects in the visible universe.
Their light output is enormous, and shows fast time-variations indicating that they are relatively small. They emit radio waves as well as light. The same superluminal phenomenon has since been observed for over half of all known quasars. To understand the superluminal illusion we will need to examine its geometry and algebra. Suppose the blob leaves the source in a direction that makes an angle q to the observer's line of sight, with a velocity b c , where c is the speed of light and b is the object's velocity as a fraction of c .