Immunofluorescence staining of a synovial organoid shows CD68+ macrophages (immune cells) in yellow, CD31+ endothelial cells (blood vessels) in red, PDPN+ fibroblasts in green, and nuclei in blue is seen.

This image was taken on a confocal microscope and is part of the ICE Cubes #9.4 – Aging in Microgravity investigation.

Astrobiology, space biology,

Explorers Club Fellow, ex-NASA Space Station Payload manager/space biologist, Away Teams, Journalist, Lapsed climber, Synaesthete, Na’Vi-Jedi-Freman-Buddhist-mix, ASL, Devon Island and Everest Base Camp...