News
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Health & MedicineProtein may be target for Crohn’s therapy
A protein called macrophage migration inhibitory factor, or MIF, may play a role in Crohn's disease, a painful gut ailment.
By Nathan Seppa -
TechExploding wires open sharp X-ray eye
Using exploding wires to make low-energy X-rays, a novel, high-resolution camera snaps X-ray pictures of millimeter-scale or larger objects—such as full insects—in which features only micrometers across show up throughout the image.
By Peter Weiss -
EarthResearchers confirm sea change in oceans
A new analysis of ancient seawater shows that the ocean's chemistry has fluctuated over the last half-billion years.
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AnimalsMagnetic field tells nightingales to binge
Young birds that have never migrated before may take a cue from the magnetic field to fatten up before trying to fly over the Sahara.