91色情片

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Expedition member Chris Blakeley in the entrance to the northernmost known cave on the Wulff Land Peninsula

Earth

Exploring the world’s northernmost caves 鈥� in pictures

A trip to a remote cave in northern Greenland previously only seen from the air uncovered fascinating information about the area's climate millions of years ago. These images from expedition photographer Robbie Shone reveal more

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What is the optimal way to ice a cocktail?

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e Harvest Moon due to its association with autumn harvests in the Northern Hemisphere. Credit: nidpor/Alamy Live News

What changes will occur on Earth as the moon moves further away? part 2

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At what point does my family tree stop doubling and start decreasing? part 2

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Lola the cat

This week鈥檚 new questions

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Comment

Does shapewear make us less prone to taking risks? Weirdly, maybe yes

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Tom Gauld on failed science clip art

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Twisteddoodles on how to handle memes featuring medical symptoms

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Environment

Prize-winning image highlights precarious position of mangrove forests

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Comment

The mathematics of balloon animals

Feedback is delighted to be pointed towards an old but still vital piece of research that presents 鈥渁 general mathematical and algorithmic theory for balloon-twisting structures鈥�

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At what point does my family tree stop doubling and start decreasing?

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How does my energy use differ if I walk, jog or run for 1 kilometre?

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Why don鈥檛 dogs look up when a low-flying plane passes overhead? part 2

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This week鈥檚 new questions

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