History Stories
Find of World’s Oldest Fossil Could Alter Timeline for Life on Earth
September 1, 2016

Announcement of the discovery of a 3.7-billion-year-old fossil in Greenland could mean that life on Earth started much earlier than previously thought. Read More

Scientists Confirm Crystal as Oldest Piece of Earth’s Crust
February 24, 2014

Researchers have confirmed that a tiny gem found in western Australia is the oldest known piece of Earth, dating back some 4.4 billion years. Read More

Earth-Like Planets Found to Be Common
November 6, 2013

Using data from the Kepler space telescope, astronomers speculate that our galaxy holds billions of Earth-like planets. Read More

What Is Earth Really Made Of?
September 24, 2010

New research suggests that a layer of molten rock or magma may lie some 1,800 miles beneath our feet, sandwiched in between the Earth's core and its lower mantle. Read More