The Human Body in Space | Simple Site

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Curiosity (Rover)

Exploration Systems Development Mission Directorate

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The Human Body in Space

Establishing Crew Exposure Limits of Martian Dust

Background Human exploration of Mars will expose crews to a persistent, fine particulate environment whose physicochemical properties and health implications remain only partly understood.

Posted July 21, 2026

Office of the Chief Health and Medical Officer (OCHMO)

General

Human Health and Performance

Human System Risks

Humans in Space

The Human Body in Space

Establishing a VTE Risk Score for Astronauts Algorithm

In April 2026, NASA’s Office of the Chief Health and Medical Officer (OCHMO) initiated a working group to review updated VTE case information, additional data gathered revealing altered blood flow status within a cohort of astronauts, and discuss progress of research and clinical activities intended to mitigate the risk of VTE during spaceflight wi

Posted July 18, 2026

Office of the Chief Health and Medical Officer (OCHMO)

General

Human Health and Performance

Humans in Space

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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Cryosphere

8

STS-1

1

EPSCoR

3

13

Astronauts

108

Mars

110

NASA STEM Projects

9

Small Spacecraft Technology Program

20

Dawn

3

STS-51C

1

Air Mobility Pathfinders project

6

Auroras

14

Mars Sample Return (MSR)

13

NEO Surveyor (Near-Earth Object Surveyor Space Telescope)

10

3

Transformational Tools Technologies

12

Global Precipitation Measurement (GPM)

2

XMM-Newton (X-ray Multi-Mirror Newton)

3

46

Robert L. Satcher Jr.

1

Investigation of Convective Updrafts (INCUS)

1

8

Commercial Space

98

32

Earth's Atmosphere

33

Sustainable Flight Demonstrator

6

1

1

Moons

4

Office of the Chief Health and Medical Officer (OCHMO)

5

Franklin R. Chang-Díaz

1

Visible / Optical Light

1

Helios 1

1

Pulsars

13

23

Outer Planets & Ocean Worlds Program

1

Raja Chari

3

Hybrid Thermally Efficient Core

3

Landsat 1

1

1

2

Discovery Program

2

STS-96

1

Ames Research Center

226

Biological & Physical Sciences

44

Matthew Dominick

5

4

Extreme Weather Events

18

Underway Recovery Test 11

1

GRACE-FO (Gravity Recovery and Climate Experiment Follow-on)

7

Planetary Nebulae

12

15

Jasmin Moghbeli

11

Lunar Surface Innovation Consortium

7

Coronal Diagnostic Experiment (CODEX)

3

Stars

155

Electrified Aircraft Propulsion

5

AcrimSat (Active Cavity Irradiance Monitor Satellite)

1

Artemis 5

7

NASA Engineering and Safety Center

48

4

GALEX (Galaxy Evolution Explorer)

1

36

NASA+

5

ExoMoons

1

THEMIS-ARTEMIS (Time History of Events and Macroscale Interactions During Substorms - Acceleration, Reconnection, Turbulence and Electrodynamics of Moon's Interaction with the Sun)

1

Gemini IX

1

William A. Anders

2

Pathfinding for Airspace with Autonomous Vehicles

1

Research Opportunities in Space and Earth Sciences (ROSES)

4

In-Situ Resource Utilization (ISRU)

2

Leadership

12

Clouds

13

Space Communications Technology

21

Early Stage Innovations (ESI)

3

Super-Earth Exoplanets

10

Apollo

14

BurstCube

4

Michoud Assembly Facility

35

Ocean Circulation

1

Flightlog

1

VERITAS (Venus Emissivity, Radio Science, InSAR, Topography & Spectroscopy)

3

Gravitational Waves

7

Private Astronaut Missions

5

Scientific Balloons

17

Johnson Space Center

405

Magnetospheric Multiscale (MMS)

2

Seyfert Galaxies

4

CubeSat Launch Initiative

17

STS-107

2

ER-2

5

180

Astronomy

3

Mars 2020

35

Carlos I. Noriega

1

SmallSats Program

5

DC-8

6

STS-51D

1

7

B200

3

Mars Science Laboratory (MSL)

26

NEOWISE

8

54

Transformative Aeronautics Concepts Program

24

Globular Clusters

5

XRISM (X-Ray Imaging and Spectroscopy Mission)

6

Physical Sciences

8

Robotics

18

Io

5

Low Boom Flight Demonstrator

27

Commercial Space Division

1

Spacesuits

8

Earth's Magnetic Field

5

Sustainable Flight National Partnership

4

Apophis

2

MOSAICS

1

Office of the Chief Information Officer (OCIO)

4

Technology for Space Travel

18

Fruit Fly Lab (FFL)

1

Visible Infrared Imaging Radiometer Suite (VIIRS)

9

5

Opportunities For U.S. Citizens to Get Involved

5

Quasars

6

Human Dimensions

18

Katherine Johnson IV and V Facility

3

Outside the Classroom

10

Ranger 7

2

Hypersonic Technology

6

Landsat 5

2

CHAPEA Mission 2

1

Solar System Ambassadors

1

Diversity at NASA

24

STS-99

1

Ames Research Center's Science Directorate

34

Black History Month

7

MAVEN (Mars Atmosphere and Volatile EvolutioN)

18

Nicole Aunapu Mann

3

EZIE (Electrojet Zeeman Imaging Explorer)

2

University Innovation

14

11

Planetary Science

97

SBIR

1

Jason-CS (Continuity of Service) / Sentinel-6

5

Lunar Surface Innovation Initiative

10

Coronal Mass Ejections

3

Stellar Evolution

3

Electrified Powertrain Flight Demo

3

Active Galaxies

13

Artemis Accords

48

NASA Headquarters

135

The Future of Commercial Space

13

Game Changing Development Program

37

2

National Advisory Committee for Aeronautics (NACA)

6

Exoplanet Atmosphere

12

Thomas P. Stafford

3

Gemini VI

1

William C. McCool

1

People of Armstrong

4

Revolutionary Vertical Lift Technology

3

4

Learning Resources

145

CloudSat

1

Space Flight Awareness (SFA)

1

Earth

270

Supermassive Black Holes

21

Apollo 1

1

1

3

2

Floods

10

Vertical Motion Simulator

1

Green Aviation Tech

17

Prizes, Challenges & Crowdsourcing

6

Sea Ice

10

Johnson's Mission Control Center

6

MAIA (Multi-Angle Imager for Aerosols)

1

Shuttle Radar Topography Mission (SRTM)

2

CubeSats

33

STS-113

1

EscaPADE (Escape and Plasma Acceleration and Dynamics Explorers)

7

Aeronautics Research

11

373

Mars Campaign Development Division

2

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