The shirt that fights “calorific rays” and other improbable inventions
Feedback is our weekly column of bizarre stories, implausible advertising claims, confusing instructions and more
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Could Jupiter ever ignite into a star?
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Why does my brain like fictional stories?
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This week鈥檚 new questions
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Space
Apollo collection curator on what Neil Armstrong took to the moon
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Space
The space-junk calamity that could cut us off from the cosmos
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Technology
A perfect MeerKAT moment as the sun breaks through above the telescope
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Will I still be able to play Candy Crush after the apocalypse?
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Could you change Earth鈥檚 rotation by all running at the same time?
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Swimming strokes: which is the fastest?
A continuation of the question about the speed and energy efficiency of swimming strokes. One reader points out which stroke is fastest
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This week鈥檚 new questions
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Physics
Mathematician Eugenia Cheng on the abstract wonder of category theory
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Technology
Psychedelic baby turtle wins 2019 Nikon Small World photography prize
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Space
Spot six planets in the sky this week: Mercury, Mars, Uranus and more
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