Since the late 1800s, observers have searched the polar skies for elusive, high-flying clouds that shine in the darkness. These polar mesospheric clouds, or PMCs, are wispy swarms of ice crystals that ...

There is no shortage of penguin poop in Antarctica. In fact, you can see it from space, if you know where to look. Researchers often use satellite observations to study Adélie penguin populations and ...

The clouds in Antarctica might be fueled by penguin poop. Penguin poop — sorry, penguin guano — is creating clouds in Antarctica that could be affecting local temperatures, according to new research ...