Exercising in space for two hours daily is critical for maintaining bone and muscle health in the absence of gravity.NASA astronauts are exploring ways to maximize space workouts to offset the effects of weightlessness.NASA Flight Engineers conducted blood pressure checks and ultrasound scans to collect biomedical data for promoting crew health and safety.NASA astronauts are preparing for cargo missions, with Cygnus ending its mission and staging cargo for the next SpaceX Dragon cargo mission.