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Materials ScienceBacteria can be coaxed into making the toughest kind of spider silk
Lab-altered bacteria have made a copy of a spider’s strongest silk strands, which could one day be used to make more sturdy materials.
By Jeremy Rehm -
AnthropologyForeigners may have conquered ancient Egypt without invading it
Dental evidence suggests female Hyksos immigrants married into power.
By Bruce Bower -
GeneticsA Nobel Prize winner argues banning CRISPR babies won’t work
Human gene editing needs responsible regulation, but a ban isn’t the way to go, says Nobel laureate David Baltimore.
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PhysicsThe LIGO and Virgo gravitational wave detectors are back on
Souped-up instruments could spot never-before-seen sources of gravitational waves.