The vermilion, amethyst and jade ribbons of the northern and southern lights are some of Earth’s most distinctive features.

NASA researchers got a rare chance to study Uranus' atmosphere and rings this month, when the ice giant passed between Earth ...

What's the difference between a solar flare and a coronal mass ejection? And how do they lead to auroras?

Eruptions from sunspot AR3664 have created a geomagnetic storm that is delivering jaw-dropping northern lights on Earth. The ...