Oblivion Continuum

An Oblivion Continuum was a type of technology of Dalek design and involved the containment of wormholes to serve as power sources. They were capable of being bottled inside the body of androids as well as served as potent explosive warheads. Their usage as a bomb was strong enough to shatter planets and cause worlds to bleed into the next dimension. Whilst the Time Lord known as The Doctor was aware of the existence of such power sources, he had never seen one up close.

A group of Daleks created the android Professor Edwin Bracewell to ensure their masquerade as Human weapons in the Ironside Project during World War II. To power the android, they implanted an Oblivion Continuum as both an energy source as well as a bomb to destroy the Earth once their mission was complete. Following the activation of the Progenitor device and the restoration of new Daleks, the Dalek Supreme revealed to the Doctor that an Oblivion Continuum was present in Professor Bracewell and unless he called off his attack - they would activate the power source and destroy the planet. When the Doctor complied, the Daleks activated the bomb anyway and fled through a time corridor. The Doctor only managed to stop the Oblivion Continuum from detonating by the aid of Amy Pond with both of them giving Professor Bracewell a reason to live thus deactivating the weapon. (DW: Victory of the Daleks)