The Hubble Space Telescope captured an unexpected observation of a nearby planet that’s having its atmosphere blasted away by energetic outbursts from its star. It’s a dramatic change from the last ...

Until recently, Mercury seemed to be the only planet in our Solar System without aurorae, those streams of light that appear on Earth in the polar skies when solar wind bombards the upper atmosphere ...

Researchers estimated that before humans started pumping mercury into the atmosphere, it contained on average about 580 megagrams of mercury. However, in 2015, independent research that looked at all ...