- You may be looking for The Black Hole (audio story).
Black holes were regions in space created when the remains of a dense star of normal matter collapsed far enough to drill a hole through the fabric of space, (PROSE: Sanctuary) creating a singularity. Their incredible density resulted in a strong gravitational pull.
The gravity of a black hole was so great that nothing, not even light or time, could escape its pull. They could act in two ways: some holes did, as sometimes speculated, lead to other universes and served as portals; other holes just ate and ate and ripped up star systems and anything else. (TV: The Impossible Planet) Black holes could also serve as a gateway into hyperspace. (TV: The Horns of Nimon)
Black holes were caused when stars collapsed. There were several types of black holes. The biggest were called super massive black holes. Those black holes could be found at the heart of every galaxy. They had a mass about 7 billion times that of the Sun. (WC: Alien File: Eve)
Black holes and Time Lords Edit
Omega and Rassilon destroyed the star Qqaba (COMIC: Star Death) to produce an energy source powerful enough to enable time travel. Omega, thought dead, survived his journey through this black hole, although he was trapped within it. He was able to shape matter within it at his will. (TV: The Three Doctors, Arc of Infinity) Rassilon brought back either a black hole or its singularity to become the Eye of Harmony. (TV: The Deadly Assassin)
When two versions of the Doctor's TARDIS collided, the Tenth Doctor combined a black hole and a supernova to stop a black hole from being created, after witnessing it in his fifth incarnation. (TV: Time Crash)
Effects on the universe Edit
Before the universe began, the ancient Disciples of the Light fixed the planet Krop Tor in geostationary orbit around K37 Gem 5. The Tenth Doctor, before learning of this, regarded the planet's fixed orbit as scientifically impossible. Both the black hole and the planet served as a prison in which to confine the Beast. (TV: The Impossible Planet)
Artificial black holes Edit
Artificial black holes could be created. In 2006 or later, an experiment in Switzerland created an artificial black hole, which K9 Mark IV spent about three years trying to stabilise in order to protect Earth. (TV: Invasion of the Bane, The Mad Woman in the Attic) In 2009, Ship converted the black hole into fuel, releasing K9 and saving the Earth. (TV: The Mad Woman in the Attic)
During the Year That Never Was, the Master created a fleet of Toclafane rockets, each holding a black hole converter so that he could could wage war on the rest of the universe and turn Earth into "New Gallifrey" under his control. The rockets faded away when time was reversed. (TV: Last of the Time Lords)
Omega ordealed a plan to use the Hand of Omega, a stellar manipulator, to create a black hole to flee the anti-matter universe he was trapped in. That black hole threatened to destroy the entire universe. (AUDIO: Intervention Earth)
Other references Edit
An arch-criminal from the planet Nefrin, Brimo, sentenced to remain alive forever in an eternity capsule, found herself inside a black hole when Nefrin's sun collapsed upon itself. Much like Omega, she found herself in a mutable world shaped by her imagination and drained energy from the universe outside it. (COMIC: The Time Witch)
Before his death, Eugene Jones planned on attending a lecture entitled "Black Holes and the Uncertainty Principle" at Aberystwyth University with his friend Gary. Having found a flyer for the lecture in Eugene's room, Gwen Cooper showed up there and spoke to Gary for questioning. (TV: Random Shoes)