Cosmology for beginners

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Cosmology for beginners
Carolin Crawford Institute of Astronomy, Cambridge
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previously...

• Gravity
• Scales
• The Galaxy
• Dark Matter
• The Universe

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• The Universe is expanding faster and faster
• Expansion caused by the Big Bang
• Wed expect it to start slowing down
• Instead its speeding up

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Einstein

• The universe is not behaving as expected!
• Gravity?
• Tiny particles?
• A new force?

?
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Einstein

• We call this new force
• DARK
• ENERGY

?
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• dark ordinary matter account for one-quarter of
  the Universe
• the remainder is dark energy