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SpaceX has announced March 6 for the launch of its 20^th contracted cargo mission to the International Space Station. Its Dragon resupply ship will arrive March 9 with over 5,600 pounds of science hardware, research samples and supplies to the Expedition 62 crew.

Meanwhile, NASA Flight Engineers Jessica Meir and Andrew Morgan are tending to a new experiment, which was delivered early last week aboard Northrop Grumman’s Cygnus cargo craft. The astronauts are exploring the differences between bone cells exposed to microgravity versus samples magnetically levitated on Earth.

Doctors will use the comparisons to gain a deeper understanding of bone diseases. Space-caused bone loss is similar to the symptoms of Earth-bound conditions such as osteoporosis. Astronauts exercise daily keeping track of their diet to counteract the effects of microgravity and maintain healthy bones and muscles.

Meir and Morgan continue to unpack the over three tons of cargo shipped aboard Cygnus one week ago. The duo transferred powered payloads including science freezers containing research samples and tanks filled with nitrogen and oxygen to replenish the station’s atmosphere.

Commander Oleg Skripochka of Roscosmos was back on space physics research this morning observing the behavior of heavily charged particles, or plasma crystals. The three-time station resident also serviced life support gear before collecting measurements from Russian radiation detectors.

The Expedition 62 crew spent Monday on a variety of human research activities while also exploring Earth from the vantage point of the International Space Station.

NASA is studying how astronauts’ bodies adapt to living and working in space as mission managers plan longer human missions to the Moon, Mars and beyond. The long-running Fluid Shifts investigation is observing the impact of pressure on the brain and eyes due to the upward flow of body fluids caused by weightlessness.

Flight Engineers Jessica Meir and Andrew Morgan spent Monday morning collecting their blood, saliva and urine samples for the biomedical study. They spun the samples in a centrifuge before stowing them in a science freezer for analysis on Earth.

The duo then split up as Meir serviced cell samples for a bone study, while Morgan checked on samples being observed for a bio-fuel experiment. They got back together at the end of the day for eye exams as part of the Ocular Health study.

Station Commander Oleg Skripochka, a veteran of two prior station missions, juggled a wide array of space research. He first studied heavily charged particles, or plasma crystals, before setting up Earth observation gear to be remotely controlled by students on the ground. Next, Skripochka split his time on a pair of Earth studies seeking ways to monitor conditions and forecast natural and man-made disasters.