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Newly Cast Terra Cotta Warriors Look to More Peaceful Future

Newly Cast Terra Cotta Warriors Look to More Peaceful Future

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How Romney, Obama Camps Use Google Ads to Target Voters

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Vatican: Are U.S. Nuns Promoting 'Radical Feminist Themes?'

Vatican: Are U.S. Nuns Promoting 'Radical Feminist Themes?'

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VA Adds 1,600 Workers to Fix Backlog

VA Adds 1,600 Workers to Fix Backlog

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Lagarde: Global Economy Sees 'Dark Clouds on the Horizon'

Lagarde: Global Economy Sees 'Dark Clouds on the Horizon'

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Gulf Still Grapples With Massive BP Oil Leak 2 Years Later

Gulf Still Grapples With Massive BP Oil Leak 2 Years Later

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Shields, Brooks on Voter Volatility, Obama vs. Romney

Shields, Brooks on Voter Volatility, Obama vs. Romney

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More Secret Service Agents Out as Scandal Inquiry Expands

More Secret Service Agents Out as Scandal Inquiry Expands

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Political Planking: Everything You Wanted to Know About Shad

Political Planking: Everything You Wanted to Know About Shad

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PBS News Hour

After Heart Attack, Turning Scar Tissue Into Heart Cells

A study published Wednesday in the journal Nature revealed that scientists have managed to convert damaged tissue into functioning heart muscle by inducing mild heart attacks on lab mice then coaxing their hearts into rebuilding themselves. In collaboration with KQED's QUEST program, correspondent Spencer Michels reports.
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