Satellite‐Based On‐Orbit Printing of 3D Tumor Models

Space three dimension (3D） bioprinting provides a precise and bionic tumor model for evaluating the compound effect of the space environment on tumors, thereby providing insight into the progress of the disease and potential treatments. However, space 3D bioprinting faces several challenges, including prelaunch uncertainty, possible liquid leakage, long‐term culture in space, automatic equipment control, data acquisition, and transmission. Here, a novel satellite‐based 3D bioprinting device with high structural strength, small volume, and low weight (