SpaceOur solar system could be hiding an extra planet the size of Uranus Many planets are thought to be flung away from their stars, but it’s possible that some get trapped on the way out – and one could be lurking at the edge of our own solar system News
SpaceMars may have a huge plume of hot rocks rising towards its surface Mars has been viewed as a mostly geologically static world, but the planet may have an enormous underground plume of hot rocks slowly rising towards the surface News