New computer simulations suggest the first magnetic fields that emerged after the Big Bang were much weaker than expected — containing the equivalent magnetic energy of a human brain. When you ...

Remote control Schematic showing (top panel) how microfibrebots can anchor to a blood vessel, navigate via helical propulsion, elongate to pass through narrow regions and aggregate to block blood flow ...

Whereas optogenetics, which controls neurons with light, and electrical deep brain stimulation, used to treat Parkinson’s disease, both require the implantation of invasive electrodes into the brain, ...