When a supermassive black hole in a nearby galaxy suddenly brightened in X-rays, astronomers watched it do something they had never seen before: within hours, the flare appeared to ignite winds racing ...

Near-infrared light pulsing into a person's skull appears to boost healing in patients with a severe concussion, a new study finds. Patients who wore a helmet emitting near-infrared light displayed a ...

Controlling a molecule is not always simple. For instance, the precise arrangement of electrons in an organic molecule determines the wavelengths of light it can absorb; this can be challenging to ...