Health
The science of exercise: Which activity burns the most calories?
Running, swimming, HIIT or walking – what is the best way to work out? The answer is complicated, and depends on the person, finds Grace Wade
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Earth
Striking image shows well-preserved wreck of Shackleton’s doomed ship
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Tom Gauld on the realities of being an evil scientist
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Twisteddoodles on a zombie invasion
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Is there evidence disproving the notion we are part of a simulation?
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How do we know that gravity has the same speed as light?
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This week’s new questions
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Missed out on seeing the northern lights? Meta has you covered
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Life
Why a potted plant isn’t the easiest option for would-be gardeners
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Space
10 stunning James Webb Space Telescope images show the beauty of space
Maggie Aderin-Pocock, who has worked on the JWST, catalogues the science behind its most stunning images in her new book, Webb's Universe. Here's her pick of the telescope’s best shots
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Tom Gauld: Congratulations on your successful experiment!
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Twisteddoodles on a secret technical handshake
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Mathematics
How the maths of queuing can make lines more efficient
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Can rain help a “human head” survive a lightning strike? Possibly
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