Sunita Williams explores how spaceflight affects blood clotting

During their extended stay in space, NASA astronaut Sunita Williams has been carrying out a range of scientific experiments. Last week, she collected her blood sample, spun it in a centrifuge, then stowed the specimen in a science freezer for an analysis.

Sunita Williams explores how spaceflight affects blood clotting
During their extended stay in space, NASA astronaut Sunita Williams has been carrying out a range of scientific experiments. Last week, she collected her blood sample, spun it in a centrifuge, then stowed the specimen in a science freezer for an analysis.