The cave may have been explored by children, who crossed a deadly abyss and left artworks on the walls.

The cave may have been explored by children, who crossed a deadly abyss and left artworks on the walls.
The geographic poles can shift at surprisingly high rates Planet Observer/Universal Images Group via Getty Images The Earth’s…
Expedition member Chris Blakeley in the entrance to the world’s northernmost known cave, found on the Wulff Land…
The Chicxulub asteroid brought the age of the dinosaurs to an end ROGER HARRIS/SCIENCE PHOTO LIBRARY The asteroid…
The ice floe cracks up around the Endurance Royal Geographical Society After the British ship Endurance (pictured above)…