Spain's prime minister, Pedro Sánchez, has said the exact cause of the blackout is yet to be determined. In early reporting, Portugal's grid operator REN was quoted as blaming the event on a rare ...

Officials at the National Oceanic and Atmospheric Administration say the weekend’s three rare solar storms that produced light shows visible from Northern California could potentially cause ...

The phenomenon, also known as the aurora borealis, should be visible Black Friday in parts of the northern United States, according to the National Oceanic and Atmospheric Administration.

The Northern Lights could be visible in Michigan on Tuesday night and Wednesday. According to the National Oceanic and Atmospheric Administration, a solar flare called a coronal mass ejection is ...

This complements Hubble's visible-light pictures that show the ever-changing cloud patterns. In this photo, the parts of Jupiter's atmosphere that are at higher altitude, especially over the poles ...