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A brain shape drawn on a petri dish held by a gloved hand

Why growing human brain tissue in a dish is an ethical minefield

25 April 2018

The increasing ability to create mini human brains in labs or integrate human cells into animal brains is rightly provoking worries about their use, says Alex Pearlman
Mike Pence, US vice president (left) and Jim Bridenstine

What to expect from the controversial new choice as NASA boss

25 April 2018

Republican politician Jim Bridenstine has taken the reins at NASA after a long battle. What will his appointment mean for the space agency, asks Samantha Murphy

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