Scientists had long thought that black holes were the only sources for ULXs. As black holes consume nearby material, they emit powerful X-rays thought to be responsible for the extremely bright ULX objects. http://www.space.com/27385-pulsar-discovery-superbright-xray-beacon.html A few questions. 1.How fast is the velocity of the escaping ULX from the black hole? 2.Wouldn't the ULX have to be traveling faster than the speed of light to escape the black hole? 3.What is the distance from the black hole that a ULX is able to travel once the ULX escape? 4.Specifically what type or types of material generate the ULX's? 5.Are the ULX's able to be gathered or harvested for energy production use?