Beating ‘hearts on a chip’ will travel to space on SpaceX’s Dragon cargo ship tonight –

SpaceX’s Dragon cargo ship is scheduled to launch Tuesday (March 14) evening, carrying nearly 6,300 pounds (2,860 kilograms) of cargo to the International Space Station (ISS). But among the spacewalk equipment, vehicle hardware and fresh fruit for the crew, there will be several small devices that contain something a little more unusual: beating human heart tissue. 

The tissue will be used in two experiments — Cardinal Heart 2.0 and Engineered Heart Tissues-2 — which will test whether existing drugs can help prevent or reverse spaceflight’s negative effects on the heart.

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