What would happen if a black hole jet hit the sun or Earth?
The larger the black hole, the larger the jet, point out our readers - and it isn’t something they are looking forward to
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Is music an essential part of human evolution? Part 2
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This week’s new questions
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Comment
Unpacking the new Jordan Peterson book – with much exhaustion
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Tom Gauld on an unexpected new stand-up comedian
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Twisteddoodles on worm holes
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Life
Why surrounding your plants with crushed eggshells won’t deter slugs
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Why do we start growing lots of ear, nose and eyebrow hair as we age?
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How long will it be before the rules for leap years need revision?
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This week’s new questions
Why do so many Scottish animals have red fur or hair, such as red squirrel, red deer, Highland cows and red-headed humans? And how do human infants think and communicate before they acquire language?
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How to defeat wild emus – lessons from history
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Environment
Images reveal how climate change is upending life in Morocco’s oases
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Tom Gauld on experimenting with unusual materials
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Twisteddoodles: if science talks were like videos on social media
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