Vog forms when sulfur dioxide (SO₂) and other volcanic gases react chemically with atmospheric moisture, oxygen, sunlight, ...

People lived in many parts of the Old World by then but had not yet reached Australia or the Americas. The bulk of the human ...

The latest safety measures at Costa Rica's Poás Volcano National Park, including limited visitor capacity and new trail ...

A scientist has warned that an area of East Africa could break away from the rest of the continent sooner than previously ...