A warmer planetary haven around cool stars, as ice warms rather than cools

In a bit of cosmic irony, planets orbiting cooler stars may be more likely to remain ice-free than planets around hotter stars. This is due to the interaction of a star’s light with ice and snow on the planet’s surface.

Ancient Antarctica was warmer and wetter

Antarctica was once as warm as Iceland - warm enough for vegetation and even trees to thrive, a new study has found.