Expedition 73 | Simple Site

International Space Station (ISS)

NASA Sets Coverage for Astronaut Jonny Kim, Crewmates Return

NASA astronaut Jonny Kim, accompanied by Roscosmos cosmonauts Sergey Ryzhikov and Alexey Zubritsky, is preparing to depart the International Space Station aboard the Soyuz MS-27 spacecraft and return to Earth. Kim, Ryzhikov, and Zubritsky will undock from the station’s Prichal module at 8:41 p.m. EST on Monday, Dec.

Posted December 4, 2025

Earth Observatory

Rings of Rock in the Sahara

In southeastern Libya, Jabal Arkanū’s concentric rock rings stand as relics of past geologic forces that churned beneath the desert.

Posted November 28, 2025

Northrop Grumman Commercial Resupply

Commercial Resupply

Humans in Space

International Space Station (ISS)

STS-107

William C. McCool

NASA’s Northrop Grumman CRS-23 Infographics & Hardware

NASA’s Northrop Grumman Commercial Resupply Services 23, or Northrop Grumman CRS-23, will deliver more than 11,000 pounds of science and supplies to the International Space Station. This mission will be the first flight of the Cygnus XL, the larger, more cargo-capable version of the company’s solar-powered spacecraft.

Posted September 11, 2025

SpaceX Commercial Resupply

Commercial Resupply

General

International Space Station (ISS)

NASA’s SpaceX 32nd Commercial Resupply Mission Overview

NASA and SpaceX are targeting no earlier than 4:15 a.m. EDT on Monday, April 21, for the next launch to deliver scientific investigations, supplies, and equipment to the International Space Station.

Posted April 17, 2025

Humans in Space

International Space Station (ISS)

NASA Astronaut Jonny Kim to Discuss Upcoming Launch, Mission

NASA will provide interview opportunities with astronaut Jonny Kim beginning at 9 a.m. EDT, Tuesday, March 18, to highlight his upcoming mission to the International Space Station in April. The virtual interviews from Star City, Russia, will stream live on NASA+.

Posted March 11, 2025

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Atmospheric Composition

1

Robert D. Cabana

2

Space Communications & Navigation Program

39

Landsat 9

8

Marshall Space Flight Center

307

Space Technology Research Grants

17

DC-8

6

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15

Exoplanet Discoveries

14

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1

Nova-C (Lander)

1

7

Voyager Program

6

GOES (Geostationary Operational Environmental Satellite)

13

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2

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37

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12

6

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141

MAF Employee Assistance Program

5

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38

STS-51A

1

Earth's Magnetic Field

4

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1

1

STS-93

1

Electromagnetic Spectrum

5

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2

Nebulae

42

People of Johnson

58

Gas Giant Exoplanets

18

Hurricanes & Typhoons

5

Air Traffic Management - Exploration

18

1

SAGE III (Stratospheric Aerosol and Gas Experiment)

1

Libera

1

Star-forming Nebulae

15

Diversity at NASA

24

Technology Transfer

45

Modeling

4

Office of the Chief Information Officer (OCIO)

4

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13

3

Grades K - 4 for Educators

12

Artemis

287

Quesst: The Science

3

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39

Small Satellite Missions

26

Johnson Space Center

355

Mariner 4

2

Active Galaxies

13

Asteroids

39

Reflection Nebulae

1

5

Katherine Johnson IV and V Facility

3

5

CubeSats

30

Supermoons

1

Eugene A. Cernan

1

23

Viking 1

1

1

Andrew S.W. Thomas

1

Pluto

2

9

Science Mission Directorate

194

25

Lunar Discovery & Exploration Program

2

Climate Science

7

STS-1

1

Earth

222

The Kuiper Belt

5

NASA en español

46

Opportunities to Contribute to NASA Missions & Get Involved

27

For Professionals

2

Women's History Month

17

125

NASA Space Technology Graduate Research Opportunities (NSTGRO)

1

Owen K. Garriott

1

Galaxies

183

Horsehead Nebula

1

Aeronautics Research Mission Directorate

90

Atmospheric Waves Experiment (AWE)

2

Robert L. Crippen

1

Space Communications Technology

19

Langley Research Center

132

Marshall Test Facility and Support Infrastructure

3

27

Deep Space Climate Observatory (DSCOVR)

3

System-Wide Safety

7

Exoplanet Exploration Program

4

Michael J. Foreman

1

NuSTAR (Nuclear Spectroscopic Telescope Array)

3

5

Wallops Flight Facility

58

GOES-R

3

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1

Project Management & Systems Engineering

2

5

SERVIR (Regional Visualization and Monitoring System)

4

Jasmin Moghbeli

11

MAF Status

1

Commercial Space

91

STS-51C

1

99

Topography

1

Mariner 7

1

Coronal Diagnostic Experiment (CODEX)

3

STS-96

1

Ellington Field

1

1

Neil Gehrels Swift Observatory

11

People of Marshall

5

USGS (United States Geological Survey)

3

Gateway Program

21

Hybrid Thermally Efficient Core

3

Air Traffic Solutions

13

Pioneer 10

1

9

SAGE-III Meteor-3M (Stratospheric Aerosol and Gas Experiment III on Meteor-3M)

1

In-flight Education Downlinks

24

10

Ceres

2

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132

Doing Business with NASA

3

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44

Moderate Resolution Imaging Spectroradiometer (MODIS)

10

Office of the Chief Scientist (OCS)

1

Find Your Place

8

White Sands Test Facility

18

GRAIL (Gravity Recovery And Interior Laboratory)

1

Artemis 1

14

Quesst: The Team

3

Small Spacecraft Technology Program

17

Johnson's Mission Control Center

5

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