iol scitech oct 24 rosetta comet
AP

What a comet smells like

Rotten eggs, horse pee: this is the bouquet of odours you would smell if a deep space comet was brought back to Earth.

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iol scitech oct 24 easter island
SUPPLIED

Ancient inhabitants weren't so lonely after all

The ancient Polynesian people who populated Easter Island, or Rapa Nui, were not as isolated as long believed.

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iol scitech july 23 ca p12 Fracking DONE
REUTERS

Tool to detect ‘frac fluids’

Scientists develop forensic tool to check if fracking fluids contaminate water.

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