The sunspot that brought the northern lights is back. Here’s what you need to know.
It’s been 2½ weeks since the once-in-a-generation aurora display, or northern and southern lights, visited both the Northern and Southern Hemispheres. Brilliant lights danced as far south as Jamaica, Mexico, India, South Africa and Australia. Space scientists said the solar storm that caused the display was the most intense in decades. An extreme solar storm … Read more