Scientists have long thought that Ceres may have a very weak, transient atmosphere, but mysteries lingered about its origin and why it’s not always present. Now, researchers suggest that this ...

Above: Marine stratocumulus clouds from the Pacific Ocean stream atop Chile’s Atacama Desert. Marine stratocumulus cover vast swaths of the tropical and subtropical oceans, where they reflect large ...

From Harvard this week comes a compelling and evidence-based answer to the evergreen question: if there's life beyond our planet, where is it? The scientists' logic goes like this: Our sun is an ...

Red dwarf hurls plasma at speeds rarely seen from Sun, potentially stripping atmospheres from orbiting planets ...