UK government tried 3D-printing guns to assess threat
Researchers at the Home Office printed a gun to understand how dangerous they might be, New Scientist has learned
Fireball meteors emit unique radio wave signals
After 50 years of trying, physicists have tuned into the radio waves given off by fireballs streaking through Earth's atmosphere
Online feminism meets neurosexism on festival circuit
From misogynist trolling to research bias, two literary festivals in the UK have underlined how sexism and feminism alike benefit from science and technology
Is the UK being too hasty over three-parent babies?
The rush to permit controversial methods to avoid mitochondrial disease in babies raises questions, say bioethicists Donna Dickenson and Marcy Darnovsky
I'm cracking the code to regrow human limbs
Lizards and tadpoles can regenerate lost limbs – so why can't we? Biologist Michael Levin wants to use bioelectricity to do just that
The US plan to cut emissions: What you need to know
The US government is ordering all existing power plants to cut their greenhouse gas emissions. New Scientist explains what the decision means
The fascination of hoverflies on a small island
The Fly Trap, Fredrik Sjöberg's leisurely, meandering reflections on life and entomology, explores the indistinct boundary between science and literature
Impossibly heavy planet is the first 'mega-Earth'
Twice the size of Earth and with 17 times our planet's mass, Kepler-10c is so unusual that it has been placed in a brand new class of exoplanet
School food fight rages on in the US
Opponents of federal standards for healthy school meals say that newly introduced fruit and veg ends up in the trash, but experts say it's too soon to give up
High-tech origami folds itself when heat is on
Flat cut-outs transform themselves into robot-like shapes – including a person, bunny, egg and house – just by baking them in the oven
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