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Office of the Chief Health and Medical Officer (OCHMO)

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The Human Body in Space

Risk of Venous Thromboembolism During Spaceflight

In October 2024, NASA’s Office of the Chief Health and Medical Officer (OCHMO) initiated a working group to review the status and progress of research and clinical activities intended to mitigate the risk of venous thromboembolism (VTE) during spaceflight.

Posted March 15, 2025

Office of the Chief Health and Medical Officer (OCHMO)

Human Health and Performance

Humans in Space

The Human Body in Space

Hydrogen Sulfide (H2S) Independent Assessment

NASA’s Office of the Chief Health and Medical Officer (OCHMO) assembled a small working group to review hydrogen sulfide (H2S) Spacecraft Maximum Allowable Concentration (SMAC) values. The group met virtually three times during February and March 2023, and panel members submitted individual opinion statements in April 2023.

Posted January 17, 2025

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STS-51C

1

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9

TRACERS

1

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19

NASA Headquarters

98

Orion Multi-Purpose Crew Vehicle

37

Flight Innovation

25

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17

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19

292

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10

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18

Juno

16

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13

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3

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1

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3

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8

Nicole Aunapu Mann

3

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6

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1

ICESat-2 (Ice, Cloud and land Elevation Satellite-2)

2

Apollo

12

C-130

1

Sentinel-6 Michael Freilich Satellite

4

STS-107

2

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4

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11

Cell and Molecular Biology

2

Small Business Innovation Research / Small Business

9

IXPE (Imaging X-ray Polarimetry Explorer)

13

MAF Status

1

27

Christina H. Koch

10

STS-96

1

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9

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10

National Advisory Committee for Aeronautics (NACA)

6

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9

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1

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1

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54

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2

Russell L. Schweickart

2

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7

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5

Matthew Dominick

4

Cryogenic Fluid Management (CFM)

3

1

Euclid

6

2

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35

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2

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1

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2

2

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9

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2

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2

5

5

1

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10

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3

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4

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2

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2

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30

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32

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1

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179

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4

Science Instruments

5

Stellar Evolution

2

9

3

DAVINCI (Deep Atmosphere Venus Investigation of Noble gases, Chemistry, and Imaging)

3

The Search for Life

10

Exoplanet Exploration Program

4

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