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The Most Powerful Objects in the Universe (25:07)
Mysterious Black Holes (21.50)
Cosmic Journeys: supermassive black hole at the centre of the galaxy (31:24)
Birth of a Black Hole (25.00)
The largest black holes n the Universe (24.58)
ESO From the earth to the Universe Free Planetarium Show (31.40)
Supermassive black holes: BBC Horizon (playlist)
Clusters of galaxies Prof. C. Crawford (1:00:07)
X--ray Astrophysics: the high energy cosmos, Prof. C. Crawford (54:40)
