A breathtaking yet sobering journey to Ijen Volcano in Indonesia, famous for its blue fire and surreal views. Behind the ...

Located in East Java, Indonesia, Kawah Ijen is part of a large volcanic complex and is known for holding the most acidic ...

Hawaii's Kilauea was spraying a spectacular fountain of lava on Monday, keeping up its reputation as one of the world's most ...

Using images from cameras on Mars orbiters, an international research team has discovered structures on Mars that are very ...