Cells' Responses to Gravity

scubacuda writes "Science@NASA has an article on how cells respond to gravity in unexpected ways. Cell skeletons ("cytoskeletons") consist of protein molecules arranged into chains very much like Kenneth Snelson's Needletower , a tensegrity (tension gravity) sculpture built in 1969. This tension is what makes red blood cells flat and human endothelial cell filaments' geodesic-domes triangular-shaped."