A degree of uncertainty
Life on Earth depends on liquid water and the temperature at which it freezes or boils. How much would the values of 0掳C and 100掳C need to change to make life here unsustainable, or hugely different?
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Bright spark?
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Space
The neon swirls that show how a map of our galaxy is made
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Environment
The spiky but stunning burrs that litter the South African coast
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Environment
Old 杏吧原创: Safety first, from fly killer to plutonium
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Feedback: How $38bn worth of nuclear material vanished overnight
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Hair shadows
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Snap, crackle, pop
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Breathe Slowly
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Environment
The hypnotic face and emerald eyes of the yellow pygmy goby
These striking, tiny fish are just 2 centimetres long and rarely stray from their adopted homes - but seen up-close, they make quite an impact
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Humans
Bob Walker tribute
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Feedback: Where nominative determinism grows like a weed
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Ol’ blue eyes
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Turning over a new leaf
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