In Spain, a Transplant That Rules Out Rejection

A revolutionary process stripped a donor's windpipe of cells prone to rejection and imbued it with tissue generated by the patient's own stem cells

• A to Z Health Guide

Copernicus' Grave Found, Researchers Say

Researchers said Thursday they have identified the remains of Nicolaus Copernicus by comparing DNA from a skeleton and hair retrieved from one of the 16th-century astronomer's books

Teen Lives 4 Months with No Heart, Leaves Hospital

D'Zhana Simmons says she felt like a "fake person" for 118 days when she had no heart beating in her chest. "But I know that I really was here," the 14-year-old said, "and I did live without a heart"

Equal Rights for Ugly Foods

After 20 years of oddly precise rules regarding the appearance of produce, the European Union is easing restrictions on forked carrots and curved cucumbers

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• The Holes in America's Food Safety Net
• 9 Kid Foods to Avoid

Cloning

Scientists say they've nearly completed sequencing a Woolly Mammoth's DNA. Are we closer to making Jurassic Park a reality?

Run for Your Lives

Dust off those sneakers. Data from a long-term study show jogging slows the effects of aging