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Neutral Buoyancy Lab

People of Johnson

Diving Into Human Spaceflight Safety with NASA Johnson’s Craig Shannon

Growing up in Houston, Craig Shannon was always inspired by NASA and the spirit of exploration the agency represents. Yet it was a passion for scuba diving that unexpectedly led to his more than 23-year career at NASA’s Johnson Space Center. Shannon became a certified diver and scuba instructor while earning his bachelor’s degree in […]

Posted January 6, 2026

Johnson Space Center

International Space Station (ISS)

Neutral Buoyancy Lab

People of Johnson

Station Nation: Meet Alyssa Yockey, Neutral Buoyancy Laboratory Flight Lead

Alyssa Yockey supports the International Space Station from NASA’s Johnson Space Center in Houston as a flight lead at the Neutral Buoyancy Laboratory.

Posted November 19, 2025

Neutral Buoyancy Lab

Johnson Space Center

NASA Centers & Facilities

NASA Awards Contract for Neutral Buoyancy Laboratory Operations

NASA has awarded a contract to Vertex Aerospace, LLC of Madison, Mississippi, for labor support to ensure continuing safe operations of the Sonny Carter Training Facility at NASA’s Johnson Space Center in Houston. The Neutral Buoyancy Laboratory Operations Contract II has a two-year base period that begins Oct.

Posted June 18, 2024

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2

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1

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19

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132

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3

27

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3

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7

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4

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1

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3

5

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58

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3

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1

32

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2

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4

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11

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91

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1

99

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1

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1

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1

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183

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1

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11

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5

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3

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21

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3

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1

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1

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10

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1

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24

10

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2

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132

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3

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44

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10

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1

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8

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18

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5

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3

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1

1

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2

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1

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22

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4

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29

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8

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49

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129

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10

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1

2

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8

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2

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5

19

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1

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4

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11

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55

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27

6

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1

2

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210

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1

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5

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1

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3

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2

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7

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9

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24

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2

2

1

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1

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4

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19

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8

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3

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4

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4

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2

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1

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1

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1

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1

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9

6

Galaxies, Stars, & Black Holes

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