Tue, Jan 05, 2021
This Will Also Be Dragon’s First Planned Splashdown In The Atlantic Ocean
The seven-member Expedition 64 crew relaxed on New Year’s Day and went into the first weekend of 2021 researching space biology. The International Space Station residents are also packing a pair of U.S. resupply ships for departure this week and next.
Three astronauts spent Saturday and Sunday studying how microgravity affects vision and bone tissue in rodents. Michael Hopkins and Victor Glover of NASA spent the weekend observing several dozen mice to help scientists prevent vision and bone conditions that astronauts experience while living in space. JAXA astronaut Soichi Noguchi assisted the duo during the two life science experiments.
A different pair of biology studies is exploring how weightlessness impacts potential treatments for Earth and space-caused conditions. NASA astronaut Kate Rubins spent Sunday peering through a microscope at protein crystals which are much higher quality those produced on Earth. Results from that experiment could inform ways to commercialize the development of cancer therapies in space. She also looked at engineered heart tissues to gain insights into aging and weakening heart muscles that humans experience on and off the Earth.
NASA astronaut Shannon Walker spent the weekend readying the Northrop Grumman Cygnus space freighter and the SpaceX Cargo Dragon for their upcoming departures. Cygnus will be completing a 93-day stay and the Cargo Dragon a 35-day stay at the orbiting lab.
Rubins will monitor Cygnus’ departure first on Jan. 6 after mission controllers on the ground command the Canadarm2 robotic arm to remove it from the Unity module then release it into Earth orbit. Cygnus will orbit Earth on its own until Jan. 26 for flight tests and remotely controlled science experiments.
The Cargo Dragon will be loaded with samples from this weekend’s experiments and more, including space station hardware, for return to Earth on Jan. 11. Glover will monitor the first undocking of the Cargo Dragon from the Harmony module’s space-facing international docking adapter. This will also be Dragon’s first planned splashdown in the Atlantic Ocean off the coast of Florida.
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