OsteoOmics: The crew fixated BioCells in Biocell Habitat 1 inserted the sample into the Minus Eighty Degree Celsius Laboratory Freezer for ISS (MELFI). Crewmembers experience bone loss in orbit stemming from the lack of gravity acting on their bones. OsteoOmics investigates the molecular mechanisms that dictate this bone loss by examining osteoblasts, which form bone, and osteoclasts, which dissolve bone. Improved understanding of these mechanisms could lead to more effective countermeasures to prevent bone loss during space missions and in a wide range of disorders on Earth. This may lead to better preventative care or therapeutic treatments for people suffering bone loss as a result of bone diseases like osteopenia and osteoporosis, or for patients on prolonged bed rest.

NanoRack Cubesat Deployer (NRCSD) #12: The crew brought the JEM (Japanese Experiment Module) Airlock (JEMAL) Slide Table (ST) into the ISS and replaced the NRCSD #11 Quad deployers with the NRCSD #12 deployers. The ST was then retracted into the JEMAL which was depressurized and vented. These activities are in preparation for the planned deployment of CubeSats from the NRCSD #12 over the next two days.

Grip Commissioning: As part of the ongoing commissioning for the Grip investigation hardware, a crewmember performed tasks in a supine position. Grip tests how the nervous system takes into account the forces due to gravity and inertia when manipulating objects. Results from this investigation may provide insight into potential hazards for astronauts as they manipulate objects in different gravitational environments, support design and control of haptic interfaces to be used in challenging environments such as space, and provide information about motor control that will be useful for the evaluation and rehabilitation of impaired upper limb control in patients with neurological diseases.

Fine Motor Skills: The crew completed a series of interactive tasks during a session of FMS which studies how fine motor skills are effected by long-term microgravity exposure, different phases of microgravity adaptation, and sensorimotor recovery after returning to Earth gravity. The goal of the investigation is to determine how fine motor performance in microgravity trends/varies over the duration of a six-month and year-long space mission; how fine motor performance on orbit compare with that of a closely matched participant on Earth; and how performance trends/varies before and after gravitational transitions, including periods of early flight adaptation and very early/near immediate post-flight periods.

On-Board Training (OBT) Dragon Rendezvous Review: The crew performed proficiency training on the Dragon mission profile, rendezvous crew procedures, and crew interfaces for monitoring and commanding the vehicle. This training is in preparation for planned SpaceX-11 launch on June 1 and berthing to ISS on June 4.

Today’s Planned Activities

All activities were completed unless otherwise noted.

Reminder 2 CSA Generic Frozen Blood Collection

Reminder 2 Fine Motor Skills

МО-8. Configuration Setup

REMINDER – ESA ACTIVE DOSIMETER MOBILE UNIT SWAP

Body Mass Measurement

CSA Generic Frozen Blood Collection 25 Minutes – Subject

NEUROIMMUNITET. Saliva Sample. Psychological Test (morning)

CSA Generic Frozen Blood Collection – Operator

KORREKTSIYA. NEUROIMMUNITET. Collection of Blood Samples

NEUROIMMUNITET. Venous blood sample processing (smear)

KORREKTSIYA. NEUROIMMUNITET. Processing venous blood sample using Plasma-03 centrifuge

CSA Generic Refrigerated Centrifuge Configure

Insertion of Russian experiments blood samples into MELFI

CSA Generic Refrigerated Centrifuge Spin Conclude

Environmental Health System (EHS) Potable Water Dispenser (PWD) Sample Collect [Aborted]

CSA Generic Sample MELFI Insertion

CSA Generic Frozen Blood Collection Conclude And Stow

Fine Motor Skills Experiment Test – Subject

МО-8. Closeout Ops

Fine Motor Skills Experiment Test – Subject

MORNING PREPARATION WORK

XF305 Camcorder Setup

JAXA PCG Canister Bag CBEF Micro-G Installation

JEM Airlock Press

Routine Maintenance of H2O [КВ], Air Pressure [КН], and Drainage [КД ]Valves in SM Rodnik Tanks

Pille Dosimeter Readout after US EVA

JEM Airlock Leak Check

TV Conference with the Participants of Space Science Week in Izhevsk (Ku + S-band)

JEM Airlock Slide Table (ST) Extension to JPM Side

Nikon still camera sync with station time

NEUROIMMUNITET. Psychological Test

NanoRacks CubeSat Deployer Swap

ISS Crew departure preparation

ISS HAM Radio Power Up

ESA Weekly crew conference

GRASP Big picture reading

OsteoOmics Fixation Operations

ZBOOK Hard Drive Installation

GRASP additional set-up in seated configuration

Environmental Health System (EHS) Coliform Water Processing

EHS Total Organic Carbon Analyzer (TOCA) Potable Water Dispenser (PWD) Sample Analysis [Aborted]

JEM Airlock Slide Table (ST) Retraction from JPM Side

JEM Airlock Depressurization

OsteoOmics MELFI Insertion 1

Extravehicular Activity (EVA) Debrief

NEUROIMMUNITET. Hair Samples Collection

Equipment Stowage under Soyuz 733 center seat. Completion Status Report Note 7

Hardware prep for PAO event. Video and audio signals check

Extravehicular Activity (EVA) Air Lock Deconfiguration

ESA Monthly Management Conference

Inspection and photography of СПА instrumentation block (БА СПА), УС31 and FGB ППС 349

Environmental Health System (EHS) Total Organic Carbon Analyzer (TOCA) Sample Data Record [Aborted]

JEM Airlock Vent

Audit of RS ISS Docking And Internal Transfer System ССВП items

Crew Departure Preparations for Return to Earth

JEM Airlock Vent Confirmation

On-Board Training (OBT) Dragon OBT Conference

On-board Training (OBT) Dragon Rendezvous Review

Verification of ИП-1 Flow Sensor Position

OsteoOmics Saline Kit Relocate

URISIS Hardware Setup

On-board Training (OBT) Dragon Robotics Review

Completed Task List Items

None

Ground Activities

All activities were completed unless otherwise noted.

MT translation from WS6 to WS4

Dragon OBT Support

CubeSat Deployer Swap Support

Three-Day Look Ahead:

Thursday, 05/25: Body Measures, OsteoOmics, GRASP, Dragon RoBOT OBT, OGS Sensor R&R

Friday, 05/26: OBT Dragon Offset Grapple, EVA loops scrub/conductivity tests, OBT Soyuz drill, GRASP

Saturday, 06/27: Crew off duty, housekeeping

QUICK ISS Status – Environmental Control Group: