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End of Week Sees Crew Explore How Space Affects Eyes, Brain and Heart

The Expedition 67 crew continued its ongoing human research today with ultrasound eye exams and blood flow measurements in the brain. The orbital residents also explored robotics and space navigation techniques.

The four astronauts aboard the International Space Station took turns Friday morning scanning each other’s eyes using the Ultrasound 2 device. Flight Engineers Kjell Lindgren, Bob Hines, Samantha Cristoforetti, and Jessica Watkins gathered in the Columbus laboratory module for the eye scans with real time support from personnel on the ground. Results will help doctors understand how living in weightlessness impacts the eye, the retina, and vision.

Earlier, Hines completed a session that required him to wear electrodes and sensors that measured blood flow in his head and chest. The Cerebral Autoregulation investigation is exploring how the human brain regulates its blood flow in microgravity. Results may benefit astronauts who experience lightheadedness and a change in blood pressure after returning to Earth’s gravity.

Watkins turned on an Astrobee robotic free-flyer inside the Kibo laboratory module testing its autonomous maneuvers ahead of the Kibo Robot Programming Challenge 3 for students. Lindgren worked in the cupola setting up a camera to photograph Moon imagery for a study that may help future Artemis astronauts navigate their way to the lunar surface.

Cristoforetti transferred the AstroPi computer from the Harmony module to the Columbus module during the morning. She then spent the afternoon checking out a robotics control system before terminating lithium-ion battery charging operations on pistol grip tools.

Commander Oleg Artemyev joined Flight Engineer Denis Matveev and spent Friday replacing components on the Zvezda service module’s treadmill vibration isolation system. Flight Engineer Sergey Korsakov worked on two different Russian experiments on Friday, one exploring the cardiovascular system’s adaptation to microgravity and the other researching advanced Earth photography techniques.

Learn more about station activities by following the space station blog, @space_station and @ISS_Research on Twitter, as well as the ISS Facebook and ISS Instagram accounts.

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Heidi Lavelle

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Crew Returns to Space Science Day after Starliner Lands

The seven Expedition 67 crew members are resuming their normal schedule of science and maintenance activities following Wednesday’s departure of Boeing’s Starliner spacecraft. The orbital residents focused on vein scans, robotics, and a host of other space research onboard the International Space Station today.

NASA and Boeing completed its Orbital Flight Test-2 mission on Wednesday. NASA Flight Engineers Kjell Lindgren and Bob Hines monitored the crew ship’s arrival last week, conducted cargo and test operations inside the vehicle, then closed the hatch on Tuesday before finally seeing Starliner undock from the Harmony module’s forward port at 2:36 p.m. EDT on Wednesday.

Lindgren started Thursday with a hearing assessment for the Acoustic Diagnostics experiment then setup the Astrobee robotic free-flyers for the Kibo Robot Programming Challenge 3. Hines set up hardware that will measure blood flow in the brain for the Cerebral Autoregulation investigation.

Both astronauts later joined astronauts Jessica Watkins of NASA and Samantha Cristoforetti of ESA (European Space Agency) for vein scans on Thursday. The quartet used the Ultrasound 2 device to scan each other’s neck, shoulder and leg veins. Doctors on the ground monitored the downlinked biomedical scans in real time to gain insight into how the astronaut’s bodies are adapting to microgravity.

Watkins and Cristoforetti began their day collecting their blood and urine samples, spinning them in a centrifuge, and stowing the samples in a science freezer for future analysis. The duo then joined Lindgren in checking out the U.S. spacesuits.

The station’s three cosmonauts from Roscosmos also contributed to the array of space research taking place today on the orbiting lab. The trio, including Commander Oleg Artemyev, with Flight Engineers Denis Matveev and Sergey Korsakov, took turns exploring ultrasound techniques to improve locating landmarks on Earth for photography. Artemyev also completed a session that monitored his cardiac activity for 24 hours. Matveev assisted Korsakov, attached to a variety of sensors, as he worked out on an exercise cycle for a fitness evaluation.

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Mark Garcia

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