Space changes the human body in many ways. From bone loss to bloated faces, here's how microgravity and radiation affect the ...

Vacuoles typically compose about 30 percent of a cell's volume, but they can fill as much as 90 percent of the intracellular space. Plant cells use vacuoles to adjust their size and turgor pressure.

Others explore how space travel impacts the cells in ... a shoebox-sized container holds bags filled with spheres of cells and all of the pumps and solutions needed to keep them alive for four ...