Thousands of alien species could invade the Arctic, warns a new study. Warmer temperatures and more tourists make it easier ...

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 ...

But you don't need to leave Earth to experience landscapes that feel out of this world. From volcanic terrains to vast deserts, our planet is filled with extraordinary destinations that make you feel ...

More than 2500 plant species have the potential to invade the Arctic at the expense of the species that belong there. Norway ...