Use precise geolocation data and actively scan device characteristics for identification. This is done to store and access ...

In April 2014, researchers flew over a site in southwest Greenland to find that a sub-glacial lake had drained away. This photo shows the crater left behind, as well as a deep crack in the ice.

A seismic survey challenges the long-standing belief that only active volcanoes have large magma bodies sitting beneath them.

As seismic activity within the volcano increases, the crater periodically contains an active lava lake that can drain suddenly and catastrophically out of Nyiragongo, gorging the volcano's ...