Channel 4 Learning



SCIENCE
The Complete Cosmos: Deep Space
 
Milky Way
Hubble's Eye
Infinity
Big Bang, Big Crunch
Black Holes, Dark Matter
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Black Holes, Dark Matter

Aims

  • To introduce the concept of 'dark matter', the invisible nine-tenths of the Universe, and to show why it may be largely responsible for the development and structure of the Universe.
  • To show how the effects of the gravity of dark matter betray its existence even though it cannot be seen.
  • To present evidence for the existence of dark matter in the Milky Way and in other galaxies.
  • To explain the principle of gravitational lensing.
  • To introduce black holes, both stellar-mass ones and supermassive ones, and to show how they form, how they can be detected, and their distorting effects on the surrounding space.