Scientists Drilled So Deep Into the Center of the Earth, They Knocked on the Mantle’s Door

Scientists drilled the deepest core yet, reaching near Earth's mantle, uncovering unique geological samples and offering new ...
Live Science on MSN

200-foot scorpion effigy mound in Mexico may align with the solstices

A 205-foot-long, scorpion-shaped mound in Mexico likely helped Mesoamericans mark the summer and winter solstices, a new ...