Spectacular displays of auroras at abnormally low latitudes were expected again Wednesday night into Thursday, a result of intense solar activity which also carries risks to communication networks.

Increased solar activity causes auroras that dance around Earth’s poles, known as the northern lights, or aurora borealis, ...

When fast-moving particles and plasma slam into Earth’s magnetic field, they can temporarily disrupt the power grid. Space ...

Space weather forecasters said there is the possibility that more auroras could reach parts of Northern California on ...