A magnitude 5.4 earthquake shook an area 45 miles east of Homer, Alaska, in Fox River, on Thursday morning, and there is no tsunami danger, according to the National Tsunami Warning Center. The quake, ...

Have you ever seen a coronal mass ejection? It’s the eruption of plasma during a solar flare, and new video captured one powerful eruption in stunning detail. A solar flare is usually the genesis of a ...