The Northern Lights may be visible in parts of the US this weekend. Why are they so active now?

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. A series of solar flares and coronal mass ejections from the Sun have the potential to create dazzling auroras that can be seen as far south as Alabama and Northern California, but could also disrupt … Read more

The Northern Lights may be visible in parts of the US this weekend. Why are they so active now?

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. A series of solar flares and coronal mass ejections from the Sun have the potential to create dazzling auroras that can be seen as far south as Alabama and Northern California, but could also disrupt … Read more

Where has winter gone? Spring is coming early as the American winter was the warmest on record

In much of America, especially in the normally cold north, the country experienced the winter months without, well, winter. In the parka strongholds of Burlington, Vermont and Portland, Maine, the thermometer never dropped below zero. The state of Minnesota called the past three months “the lost winter,” warmer than the infamous “year without winter” in … Read more

In Texas, a powerful combination of dry land and high winds is fueling wildfires

Abnormally warm temperatures, dry grass and a sudden windy cold front combined to create conditions for the devastating wildfires that have raged in parts of Texas this week. The winds that swept wildfires across the Texas Panhandle struck at the perfect time of day for destruction, “like a hurricane making landfall at high tide,” Texas … Read more

How scientists use artificial intelligence to predict forest fires

Forecasting fires is not easy: there are so many different types of challenges that forecasters face, both before a wildfire starts and even while it is active. These fires can start anytime and anywhere. So many different factors need to be considered before we can estimate how quickly this could spread and how deeply it … Read more