"You'd see this structured—almost like a patch—grey-toned or white toned-emission connected to the aurora," said researcher Emma Spanswick.

These mysterious whitish-gray glows in the northern lights might be cousins of the mauve light streak known as STEVE.

White light-emitting diodes (LEDs ... of nanorods were electrically injected by the p-type contact pad (see image). However, the integrated electroluminescence intensity was found to increase ...