Radiation levels at airline flight altitudes briefly reached levels that could be potentially harmful to pregnant women. When you purchase through links on our site, we may earn an affiliate ...

The vibrant auroras from earlier this year have a darker side that scientists are still uncovering. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...

Radiation levels in Earth's atmosphere rose to the highest level in nearly two decades in November after a rare solar super-flare pummeled the planet with high-speed particles from the sun. The solar ...