JAXA MHU-5 (JAXA Mouse Habitat Unit-5): The crew performed routine mouse habitat maintenance activities for the continuing Mouse Mission-5 investigation. JAXA Mouse Habitat Unit-5 (MHU-5) examines the effects of partial G on mice using the JAXA-developed mouse habitat cage units (HCU) that can be installed in the newly developed Centrifuge-equipped Biological Experiment Facility-L (CBEF-L) on the ISS. Stress caused by partial G may alter gene expression in cells of the body. The investigation analyzes any such alterations and their possible effects on development of germ cells, which carry genetic information and expression to subsequent generations.

NanoRacks Module-9: The crew performed the 3rd set of operations (“Ops 3”) on the NanoRacks Module-9 tube. Ops 3 involves the mixture of Tube #2, which looks at the ability of Quinoa (a type of grain) growth in microgravity. NanoRacks-National Center for Earth and Space Science Education-Gemini includes 41 microgravity experiments designed by students in grades 5 through 12 and college. The experiments range from examinations of water filtration and purification to synthetic soil production, rust formation, antibiotic effectiveness, growth and development of microacquatic organisms, and growth of plant, fungi, and bacteria. Each was chosen from more than 3,000 entries submitted by more than 23,000 U.S., Canadian, and Brazilian students. The experiments use NanoRacks MixStix, miniature laboratories activated by the ISS crew and are eventually returned to the student teams on Earth for analysis.

Rhodium Space Microbiome: The crew inserted samples S/n’s #5, #7, and #6 into the SABL unit for incubation and then removed #5 and placed it into the MELFI cold stowage facility. Genomics Investigation of Human Gut Microbiome to Determine Effects of Microgravity Exposures (Rhodium Space Microbiome) examines the effects of spaceflight on the human gut microbiome, a complex community of numerous bacterial species. Developing a better understanding shifts in microbiome diversity and function and how they affect human health and performance may help protect people on future missions. Recent studies have shown a connection between alterations in the structure and function of the gut microbiome and multiple chronic and acute diseases.

Completed Task List Activities:

None

Today’s Ground Activities:

All activities are complete unless otherwise noted.



SPDM Robotics Micro Conical Tool (RMCT) Stow

BioFabrication Facility Test Cassette Removal

Mobile Servicing System Walk-off Maneuver

Special Purpose Dexterous Manipulator Un-stow

Dragon Trunk Camera Checkout

Complete SPDM Body Camera Survey and Mnvr MSS to Bart Park Position

Node3 MCA Initial Activation after ORU2 R&R (part 3)

Look Ahead Plan

Tuesday, 3/24 (GMT 084)

Payloads:



Vascular Echo scan and Blood Pressure (CSA)

COL Payload Power Switching Box (PPSB) reconfig and discharge (ESA)

Rhodium Space Microbiome samples into MELFI #2 (NASA)

Food Acceptability (NASA)

JEM Airlock Pressurization and leak chk (NASA)

MISSE MSC removal Procedure Review (NASA)

Transparent Alloy Cartridge Exchange (NASA)

Bartolomeo removal from Dragon trunk (NASA)

Systems:

Dragon Cargo Operations

Wednesday, 3/25 (GMT 085)

Payloads:



Vascular Echo Leg Doppler PDOP Ops (CSA)

AstroPi Micro SD card to SSC (11&19) for OS upgrade (ESA)

MISSE MSC removal and stow (NASA)

PONDS Modules (s/n 1-12) install and initiate (NASA)

BFF Procedure Review (NASA)

NanoRacks Module-09 Status 3 (NASA)

CGBA4 status chk and Maintenance (NASA)

Rhodium Space Microbiome samples into MELFI #3(NASA)

STaARS kit (s/n 1012) into MELFI (NASA)

Standard Measures Presleep Questionnaire (NASA)

Systems:

Dragon Cargo Operations

Thursday, 3/26 (GMT 086)

Payloads:



Radi-N2 Detectors (8) retrieved (COL) and H/O to Russian crew (CSA)

Engineering Heart Tissue (EHT) Media change and fixation (NASA)

Standard Measures Postsleep Questionnaire (NASA)

BFF test print without cells (1 and 2) , and Syringe swap (4) (NASA)

EML Gas Vlv to Close (ESA-Joint)

Systems:

Regen ECLSS Operations

Today’s Planned Activities:

All activities are complete unless otherwise noted.

