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Genetics

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composite image of top science stories of 2017

Scientists witnessed gigantic events this year — a neutron star collision and a calving Antarctic iceberg — and also demonstrated the transformative power of more minuscule changes.

single cell embryo

HUMAN DEBUT  In the last year, research teams have announced CRISPR gene editing in viable human embryos (single-cell embryo shown).

ribosome

STANDING OUT  Scientists used to think that ribosomes, molecular machines that build proteins, are identical and interchangeable. But the micromachines are more diverse than previously thought, new research suggests.

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