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Removal of users shows the role social media companies could play in preventing misinformation sharing — plus how physicists coaxed ultracold molecules into an exotic quantum state.
Over 30 years, the scholarship programme Hrabowski founded has supported more than 1,500 Black students. He spoke to Nature for our new Changemakers series.
Terms such as sustainability and inclusivity loom large in big infrastructure projects. But impact and value for money need measuring too, says Sinan Küfeoğlu.