Buried deep in Greenland's ice sheet lies a puzzling chemical signature that has sparked intense scientific debate.
Active volcanoes, pristine lakes, and epic wildlife sightings await at Katmai National Park and Preserve in Alaska.
The US Geological Survey (USGS) has just installed some of the first sensors of their kind on the east side of the mountain.
The continents haven’t always sat where they are today, and that movement entirely changed life on our planet. Over millions […] ...
Active volcanoes, endless chasms, eroded ridges, black beaches and primary forests: Reunion Island boasts an impressive ...
Vikings called their wooden seagoing boats “langskip,” or longship, because they were very long and quite narrow. They were ...