volcanic activity

The area in South Kenya where the large crack recently appeared. Credit: Google Earth. Data SIO, NOAA, US Navy, NGA, GEBCO

Large Crack in East Africa Evidence of the Continent Splitting Into Two

When the Bullin Shrieked: How Aboriginals Recorded Volcanic Activity

Credit: Xavi/Flickr, CC BY 2.0

What Wiped Out the Dinosaurs?