Valentine's Day is all about the hearts: heart-shaped chocolates, cards, balloons and even pizza. But the heart hasn't always ...

Every year, more than 5 million people in the U.S. are diagnosed with heart valve disease, but this condition has no ...

Newborns with heart complications can rely on their newly developed immune systems to regenerate cardiac tissues, but adults aren't so lucky. After a heart attack, most adults struggle to regenerate ...

Scientists have created the first-ever 3D maps of star-forming molecular clouds near the Milky Way's supermassive black hole, ...