Exercise tests aboard the International Space Station today are helping doctors evaluate the best ways to keep crews healthy and fit on long-term space missions. The Expedition 62 crew also readied cargo and crew ships for departure as a variety of other life science experiments took place.

Aerobic fitness in space is critically important so astronauts can successfully support physically demanding mission events such as spacewalks and spaceship landings. NASA astronauts Jessica Meir and Andrew Morgan took turns testing their fitness on an exercise bike today while attached to sensors. Doctors will use the data to understand crew health and adapt exercise techniques so astronauts can maintain strong bones and muscles, and add to the body of knowledge that is helping astronauts readapt to gravity after long missions.

Afterward, Meir had a blood pressure check for the Vascular Echo cardiovascular study. Morgan checked on mice being observed for space-caused changes to their genetic expression.

The duo also continued loading the SpaceX Dragon resupply with station hardware and science experiments for analysis on Earth. Dragon will depart the station on Monday at 9:52 a.m. EDT and splashdown in the Pacific a few hours later. Meir and Morgan are also packing personal items to get ready for their return to Earth on April 17 aboard the Soyuz MS-15 crew ship.

Commander Oleg Skripochka of Roscosmos worked a pair of different Russian investigations today. He first studied how weightlessness affects blood circulation in the heart. The veteran cosmonaut then activated gear that observes the Earth’s atmosphere at nighttime in near-ultraviolet wavelengths.

The new Bartolomeo science platform from the European Space Agency is in the process of being installed to the outside of the Columbus laboratory module. Robotics controllers are remotely guiding Bartolomeo in the grips of the Canadarm2 robotic arm. Ground teams will finalize the installation over two days.