Spacefiles

Spacefiles

Galaxy - Milky Way
Season 1  |  Episode 21  |  SBS  |  March 9, 2010

Our galaxy, the Milky Way, comprises more than 200 billion stars. They are a spiral disc 100,000 light years wide and 20,000 thick. Our nearest stellar neighbour is Alpha Centauri, 4.25 light years away. The Sun, our local star, is two thirds of the way from the galactic centre. After ten-billion years of life, the Sun will bloat into red giant and die as a white dwarf. More massive stars have shorter lives and end in supernovae. The most massive collapse to be black holes.

Our galaxy, the Milky Way, comprises more than 200 billion stars. They are a spiral disc 100,000 light years wide and 20,000 thick. Our nearest stellar neighbour is Alpha Centauri, 4.25 light years away. The Sun, our local star, is two thirds of the way from the galactic centre. After ten-billion years of life, the Sun will bloat into red giant and die as a white dwarf. More massive stars have shorter lives and end in supernovae. The most massive collapse to be black holes.

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