Today on 91av
All the lastest on newscientist.com: why your brain loves pointless rituals, bitcoin vs big data, wash like an Egyptian, Davos, Glass, snail drugs and more
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Today on 91av
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Life
See chicken develop on drugs through a cracked eggshell
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Today on 91av
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Space
The moment the SpaceX rocket crash-landed on a boat
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Earth
Map that changed the world has its 200th birthday
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Today on 91av
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Earth
A drowned town has resurfaced – population one
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Feedback: Words for worthless whatsits
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