Scientists Find Surprising Core in Earths Inner Core

A new study by a team of scientists from the U. S. and China suggests Earths innermost core might have a core of its own. WSJ s Monika Auger reports. Photo: Lachina Publishing Services Subscribe to the WSJ channel here: Visit the WSJ channel for more video: More from the Wall Street Journal: Visit Follow WSJ on Facebook: Follow WSJ on Google+: