Loren Munk is unmissable. Dressed in white bespeckled painter’s pants, this 73-year-old artist shambles into New York’s galleries with a slightly crazed look. He walks around with his little camera, ...

This study presents the first physical evidence that Snowball Earth reached the heart of continents at the equator.' ...

Vladimir Putin and his henchmen have repeatedly threatened to deploy their nuclear arsenal since the Kremlin launched its ...