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PhysicsHere’s how scientists reached nuclear fusion ‘ignition’ for the first time
The first fusion experiment to produce an energy excess required meticulous planning and also revealed a long-predicted heating phenomenon.
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NeuroscienceAncient viruses helped speedy nerves evolve
A retrovirus embedded in the DNA of some vertebrates helps turn on production of a protein needed to insulate nerve cells, aiding speedy thoughts.
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Planetary ScienceNASA’s OSIRIS-REx nabbed over 120 grams of space rocks from asteroid Bennu
After being stymied by two stuck screws, NASA finally accessed a trove of Bennu asteroid bits. Mission scientist Harold Connolly tells what’s next.
By Adam Mann -
AgricultureMixing up root microbes can boost tea’s flavor
Inoculating tea plant roots with nitrogen-metabolizing bacteria enhances synthesis of theanine, an amino acid that gives tea its savoriness.