America's geological wonders don't need erupting volcanoes to create breathtaking spectacles that look straight out of a science fiction movie. From towering mushroom-shaped rocks to mysterious moving ...

Saturn’s moon Titan looks very much like Earth from space, with rivers, lakes, and seas filled by rain tumbling through a thick atmosphere. While these landscapes may look familiar, they are composed ...

Our planet is full of mysterious places, some so much so that they don't even look like they belong here. From alien-like salt lakes and icebergs to otherworldly desert rock and thermal features, here ...