This week’s new questions
How big would a planet have to be before its gravity made space travel impossible for the inhabitants? How do fish recognise others of their own species?
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The bigger the lizard, the bigger the Wiki page, discovers ecologist
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Life
Dramatic photo of ibis being guided to their winter homes wins award
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This week’s new questions
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Tom Gauld’s pie chart of what the Mars rover can see
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Why don’t carnivorous plants just use photosynthesis? part 2
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Twisteddoodles on an endangered species breeding programme
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Environment
Striking photos show how sands are encroaching on oases in the Sahara
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Think you have a good sense of humour? So do most people…
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When the sun engulfs Earth, will the remnants become new planets?
It’s possible, but it wouldn’t look like life as we know it, explain our readers
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Tom Gauld on the worst place to sit
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Mathematics
Explore the mind-bending and paradoxical art of M C. Escher
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Twisteddoodles: ‘We’re the department of climate science…’
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Why do Venus flytraps catch insects?
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