Quick crossword #75: Membrane surrounding an embryo (6)
28 January 2021
Challenge your brain by solving New Scientist's weekly crosswords on your mobile, tablet or desktop
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Tom Gauld's runaway lobster telephone problem
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Tom Gauld's weekly cartoon
Twisteddoodle's ideas for scented candles in scientific development
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This week's cartoon from Twisteddoodles
Catnip as a mosquito repellent... What could go wrong?
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An unexpected use for catnip, plus the “right to reuse” ink cartridges and the benefits (or not) of blockchain, in Feedback’s weird weekly-round up
Rare images show role of collisions in galactic evolution
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These six rare and exquisite images of galactic evolution were taken by the Hubble Space Telescope. They show what happens when galaxies collide and merge
An unscientific debate over breast milk is spilling into food banks
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An overzealous push for breastfeeding is affecting availability of baby formula in food banks, worsening problems for the poorest people, writes Clare Wilson
How social media can nudge people into becoming conspiracy theorists
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An analysis of millions of posts on Reddit found that people who joined groups related to conspiracy theories were more likely to have faced actions from moderators in more mainstream groups beforehand
Was it just luck that our species survived and the Denisovans didn't?
27 January 2021
For millennia, our species advanced in lockstep with the Denisovans and it is hard to work out from archaeological finds why they disappeared from the planet while we now dominate it
How to make compost – your scientific guide
27 January 2021
From the right ratio of green and brown waste to regular aeration, here are some top tips for making compost, writes Clare Wilson
This week’s new questions
27 January 2021
Would it be possible to genetically modify cats so that they do not have the urge to kill wildlife? And why do we hear two musical notes, an octave apart, as being the "same" note?
