The universe is expanding, but what is it expanding into? (Part 2)
Perhaps the universe isn鈥檛 expanding say our readers, whose heads are hurting at the implications of its infinite nature
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This week鈥檚 new questions
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Humans
Can quantum mechanics help a UK council plan when to collect bins?
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Tom Gauld predicts a machine revolution sparked by CAPTCHA pictures
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Twisteddoodles: A guide to lights on artificial intelligence systems
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Space
Dust devils’ subtle trails across Mars revealed in bold blue
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How can our own farts smell tolerable when other people鈥檚 smell awful?
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Why are there no birds that hibernate?
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This week鈥檚 new questions
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Space
The sky-measuring trick that every stargazer should know
There's a no-nonsense technique for navigating between stars and constellations and all it requires is putting your hand in the air, says Abigail Beall
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Humans
The neoliberal think tank that wants to sell the moon
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Tom Gauld creates a telescopic Total Perspective Vortex
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Twisteddoodles: The unfortunate reality of eureka moments
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Life
Bearbnb: Polar bears make themselves at home in abandoned village
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