Space
How to find the Apollo landing sites and dramatic craters on the moon
The moon鈥檚 surface can tell us much about the solar system's history, and our own. Here鈥檚 how to spot its craters and more, with Abigail Beall
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The irresistible bowl of wasabi that broke a woman鈥檚 heart
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End of an era: how long did it take the dinosaurs to die out?
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Fresh fruit: does washing produce reduce the risk of food poisoning?
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This week鈥檚 new questions
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Space
Maggie Aderin-Pocock on space travel and humanity’s future
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Environment
Brilliant colours tell a tragic tale of how coal killed a forest
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Space
UK space academy boss Anu Ojha on what finding aliens might mean
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Space
The imperial units error that downed a multi-million-dollar Mars probe
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Space
How to measure light pollution where you live by counting stars
If you're an urban stargazer it helps to know how much light pollution there is in your area. Here's a star-based test to find out
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Freewheeling: does one finger provide significant support on a bike?
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Time and tide: what is the smallest body of water with lunar tides?
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This week鈥檚 new questions
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How not to cheat at Scrabble: change the value of all the letters
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