When SpaceX's 20th resupply mission lifted off to the International Space Station in March 2020, beating heart cells were along for the ride. After 22 days, the heart cells were returned to Earth -- ...

ATLANTA — What happens when you send heart cells to space? They come back transformed. Scientists discovered that after just eight days aboard the International Space Station, human heart cells ...

Scientists may have discovered another way the human body tries to protect itself from cancer. New research on mice suggests that the heart's constant beating may prevent tumor growth in cardiac ...

In developing hearts, cells shuffle around, bumping into each other to find their place, and the stakes are high: pairing with the wrong cell could mean the difference between a beating heart and one ...