Though they are called ________, these objects are not really empty space but very, very dense objects, so dense that their gravity pulls nearby material irresistibly in toward them, even light. Some of this material is altered on its way in to this death spiral - and it gives off X-rays in two jets.

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The Answer of Though they are called ________, these objects are not really empty space but very, very dense objects, so dense that their gravity pulls nearby material irresistibly in toward them, even light. Some of this material is altered on its way in to this death spiral - and it gives off X-rays in two jets.

Though They Are Called ________, These Objects Are Not Really