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Health & MedicineThis is how norovirus invades the body
Norovirus targets a rare type of gut cell, a study in mice finds.
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GeneticsSweet potatoes might have arrived in Polynesia long before humans
Genetic analysis suggests that sweet potatoes were present in Polynesia over 100,000 years ago, and didn’t need help crossing the Pacific.
By Dan Garisto -
ChemistryUsing laser tweezers, chemists nudged two atoms to bond
This is the first time researchers have purposefully combined two specific atoms into a molecule.
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PhysicsA key constant’s new measurement hints ‘dark photons’ don’t exist
New measurement of the fine-structure constant is the most precise yet.