(14.3.2018) Printing organs for people on the transplant list could be a viable ISS business too. Sometime this year, Techshot will send up its 3D space biofabrication lab to the ISS to test organ printing in microgravity.
Currently, stomachs and other pliable organs can be printed on earth with the help of a supporting structure. However, a more complex organ like a heart can‘t be printed because it would be damaged by gravity when the support scaffolding is removed.
Copeland also said that stem cells have been developed faster in microgravity vs. on earth.