Week 1: The Vast Expanse of Space

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Here’s some of the numbers mentioned:

  • One Billion = 1000 millions
  • One Trillion = million millions

Light speed

  • 300 000km per second
  • 18 000 000km per minute
  • 1 080 000 000km per hour
  • 25 920 000 000km per day
  • 181 440 000 000km per week
  • 9 434 880 000 000km per year (light year)
    (9.5 trillion km)

 

  • Nearest star = Proxima Centaur = 4.22 light years.
  • Nearest Black hole = 3000 light-years away
  • Super Massive Black Hole at the centre of our Milky Way = 27 000 light years away

If earth existed for 24 hours starting from 00:00, Dinosaurs only appear 10:56 PM; Humans arrive at 11:59:59. That’s how short our existance has been!

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