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Space Communications & Navigation Program

Space Communications Technology

SCaN STEM Navigation Activities

Navigate Space: Space Communications and Navigation Workbook Grades 8 – 12 NASA navigates throughout the solar system and beyond, revealing the mysteries of the universe. In this workbook, you’ll use basic mathematics concepts to explore space navigation.

Posted September 28, 2023

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Categories

IMAP (Interstellar Mapping and Acceleration Probe)

7

Launch Services Office

13

Clouds

13

9

Early Career Faculty (ECF)

10

SunRISE (Sun Radio Interferometer Space Experiment)

3

Michael R. Barratt

2

Nova-C (Lander)

1

Flight Innovation

43

Vegetable Production System (VEGGIE)

1

Gravitational Lensing

7

Ames Research Center's Science Directorate

34

Black History Month

7

Potentially Hazardous Asteroid (PHA)

4

Science of Space Exploration

1

Johnson Flight Operations

3

Magnetars

5

7

CubeSat Launch Initiative

17

STEREO (Solar TErrestrial RElations Observatory)

4

Environmental Management Division (EMD)

8

Mark T. Vande Hei

1

NASA Space Technology Graduate Research Opportunities (NSTGRO)

1

Everyday Extraordinary Stories

1

The Sun

63

Gemini III

1

Wildfires

34

Active Galaxies

13

Artemis Accords

48

Partner with NASA STEM

9

Research and Technology Mission Directorate

16

1

Tracking and Data Relay Satellite (TDRS)

1

Global Ecosystem Dynamics Investigation (GEDI)

2

2

Aeronautics Research

11

374

Phobos

4

Robert L. Gibson

1

27

LOFTID (Low-Earth Orbit Flight Test of an Inflatable Decelerator)

1

Commercial Space Division

1

Space Technology Mission Directorate

172

Earth's Atmosphere

33

Sustainability at Kennedy Space Center

11

Moon Base

9

Office of the Chief Financial Officer (OCFO)

4

Technology Demonstration

21

5

Virgil I. Grissom

3

Heliophysics Research Program

3

Apollo 1

1

Opportunities For Researchers to Get Involved

1

1

22

Horsehead Nebula

1

Jupiter

38

Carlos I. Noriega

1

Small Business Innovation Research / Small Business

10

DC-8

6

STS-41D

1

Mars Reconnaissance Orbiter (MRO)

18

Neil Gehrels Swift Observatory

16

Diversity at NASA

24

STS-9

2

Materials Science

3

NICER (Neutron star Interior Composition Explorer)

8

Extreme Temperatures

5

Ultraviolet Light

1

GRACE (Gravity Recovery And Climate Experiment)

6

Air Traffic Control Labs

2

BARREL (Balloon Array for Radiation-belt Relativistic Electron Losses)

1

Planetary Geosciences & Geophysics

8

Saturn

25

James Webb Space Telescope (JWST)

164

16

Coronal Mass Ejections

3

26

Electrified Aircraft Propulsion

5

NASA Engineering & Safety Center Academy

1

Terrestrial Planets

1

1

Water & Energy Cycle

5

Applied Sciences Program

4

OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer)

18

Radioisotope Power Systems (RPS)

16

Hurricanes & Typhoons

11

Landsat

17

CHAPEA Mission 2

1

Solar Electric Propulsion (SEP)

1

In-flight Education Downlinks

27

Launch Services Program

48

CloudSat

1

Space Biology Program

3

Early Stage Innovations (ESI)

3

Sunspots

4

Michael S. Hopkins

1

NuSTAR (Nuclear Spectroscopic Telescope Array)

3

Flight Opportunities Program

23

Vegetation

5

Gravitational Microlensing

2

Ames Space Biosciences

12

57

PREFIRE (Polar Radiant Energy in the Far-InfraRed Experiment)

8

Science-enabling Technology

50

Johnson Leadership

2

5

SERVIR (Regional Visualization and Monitoring System)

4

CubeSats

34

Strategic Integration and Management Division

1

EPSCoR

3

Mars

110

NASA STEM Projects

9

ExoMars

3

The Sun & Solar Physics

4

Gemini IV

1

Wildland Fire Management

5

ADEOS (Advanced Earth Observing Satellite) / MIDORI

1

Artemis Campaign Development Division

3

Partner With Us

9

Research Archive

1

3

Tracy Caldwell Dyson

8

Global Precipitation Measurement (GPM)

2

xEVA & Human Surface Mobility

10

Aeronautics Research Mission Directorate

104

Astrophysics Division

179

48

Robert L. Satcher Jr.

1

Investigation of Convective Updrafts (INCUS)

1

8

Commercial Space Programs

22

Space Technology Research Grants

17

Earth's Magnetic Field

5

Sustainable Aviation

3

Moons

4

Office of the Chief Health and Medical Officer (OCHMO)

5

Technology Demonstration Missions Program

14

Franklin R. Chang-Díaz

1

Virtual Guest Program

11

Helios 1

1

Apollo 10

3

Opportunities For Students to Get Involved

40

Byron K. Lichtenberg

1

Pulsars

13

Hubble Space Telescope

239

23

Carruthers Geocorona Observatory (GLIDE)

7

Small Satellite Missions

27

Deep Space Climate Observatory (DSCOVR)

3

STS-51A

1

Mars Sample Return (MSR)

13

NEO Surveyor (Near-Earth Object Surveyor Space Telescope)

10

Charles F. Bolden Jr.

1

6

Doing Business with NASA

5

STS-93

1

Matthew Dominick

5

4

Extreme Weather Events

18

73

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

7

Air Traffic Management - Exploration

19

Barry E. Wilmore

2

Planetary Nebulae

13

15

Jasmin Moghbeli

11

Lunar Surface Innovation Consortium

7

COSI (Compton Spectrometer and Imager)

1

Star-forming Nebulae

15

Electrified Powertrain Flight Demo

3

NASA Engineering and Safety Center

48

TESS (Transiting Exoplanet Survey Satellite)

22

GALEX (Galaxy Evolution Explorer)

1

8

Aqua

5

Outer Planets & Ocean Worlds Program

1

Raja Chari

3

Hybrid Thermally Efficient Core

3

Landsat 1

1

Research Opportunities in Space and Earth Sciences (ROSES)

4

In-Situ Resource Utilization (ISRU)

2

Leadership

12

COBE (Cosmic Background Explorer)

1

Space Communications & Navigation Program

45

Earth

271

Suomi NPP (Suomi National Polar-orbiting Partnership)

6

Michoud Assembly Facility

35

Ocean Circulation

1

Flightlog

1

Venus

12

Gravitational Waves

7

Analog Field Testing

7

Blogs

227

Private Astronaut Missions

5

Scientific Balloons

17

Johnson Space Center

409

Magnetospheric Multiscale (MMS)

2

Seyfert Galaxies

4

Curiosity (Rover)

29

STS-1

1

ER-2

5

Mars 2020

35

NASA+

6

ExoMoons

1

362

Gemini IX

1

Wildlife

2

Advanced Air Mobility

19

Artificial Intelligence (AI)

17

Pathfinding for Airspace with Autonomous Vehicles

1

54

Transformational Tools Technologies

12

Globular Clusters

5

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

3

Aeronautics STEM

3

Astrophysics Explorers Program

4

Physical Sciences

8

Robotics

18

Io

5

Low Boom Flight Demonstrator

27

Commercial Supersonic Technology

15

32

126

Sustainable Flight Demonstrator

6

MOSAICS

1

Office of the Chief Information Officer (OCIO)

4

Technology for Living in Space

6

Fruit Fly Lab (FFL)

1

Visible / Optical Light

1

5

Apollo 11

6

Opportunities For U.S. Citizens to Get Involved

5

C-130

1

Quasars

6

Human Dimensions

19

Katherine Johnson IV and V Facility

4

Cassini

10

Small Spacecraft Technology Program

20

Deep Space Network

11

STS-51C

1

Mars Science Laboratory (MSL)

26

NEOWISE

8

Charles O. Hobaugh

1

2

Donald R. Pettit

4

STS-96

1

MAVEN (Mars Atmosphere and Volatile EvolutioN)

18

Nicole Aunapu Mann

3

EZIE (Electrojet Zeeman Imaging Explorer)

2

Underway Recovery Test 11

1

12

Air Traffic Management and Safety

2

Becoming an Astronaut

5

Planetary Science

98

SBIR

1

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

5

Lunar Surface Innovation Initiative

10

Cosmic Microwave Background

1

Stars

155

Electromagnetic Spectrum

5

NASA Headquarters

135

4

Game Changing Development Program

37

36

Armstrong Flight Research Center

144

Outside the Classroom

10

Ranger 7

2

Hypersonic Technology

6

Landsat 5

2

Revolutionary Vertical Lift Technology

3

4

Learning Resources

147

CoECI News

20

Space Communications Technology

21

Earth Day

5

Super-Earth Exoplanets

10

3

2

Floods

10

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

3

Green Aviation Tech

17

8

Blue Ghost (lander)

4

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

CYGNSS (Cyclone Global Navigation Satellite System)

1

STS-107

2

EscaPADE (Escape and Plasma Acceleration and Dynamics Explorers)

7

Mars Campaign Development Division

2

National Advisory Committee for Aeronautics (NACA)

6

Exoplanet Atmosphere

12

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 VI

1

William A. Anders

2

Advanced Air Transport Technology

7

Asian American and Native Hawaiian Pacific Islander Heritage

5

People of Armstrong

4

7

Transformative Aeronautics Concepts Program

24

Goddard Institute for Space Studies

17

XRISM (X-Ray Imaging and Spectroscopy Mission)

6

Aeronautics Technology

8

Astrophysics Pioneers

2

Physical Sciences Program

4

Ronald E. McNair

1

Ionosphere

10

Low Earth Orbit Economy

22

Common Exploration Systems Development Division

4

Spacesuits

8

Earth's Vital Signs

1

Sustainable Flight National Partnership

4

MUREP

10

Office of the Chief Scientist (OCS)

1

Technology for Space Travel

18

Fundamental Physics

2

Visible Infrared Imaging Radiometer Suite (VIIRS)

9

1

Apollo 12

3

Opportunities to Contribute to NASA Missions & Get Involved

29

C-20A

3

40

Human Health and Performance

31

Kathleen Rubins

2

Cell and Molecular Biology

2

SmallSats Program

5

Deep Space Optical Communications (DSOC)

7

STS-51D

1

Marshall Astrophysics

46

Neptune

2

Christina H. Koch

23

Solar System Ambassadors

1

Dragonfly

8

STS-99

1

Media Resources

1

Nicole P. Stott

1

Featured Careers

5

University Innovation

14

Grades 5 - 8 for Educators

13

Air Traffic Solutions

14

Benefits Back on Earth

3

Planetary Science Division

67

SBIR STTR

8

Jeanette J. Epps

4

Lunar Surface Technology Research

2

2

Stellar Evolution

3

Ellington Field

1

149

The Future of Commercial Space

13

Gamma Rays

10

2

Armstrong Test Facility (Plum Brook)

5

Owen K. Garriott

1

Read it!

3

41

Landsat 7

1

Associate Administrator Awards

5

People of Goddard

81

Richard A. Mastracchio

1

Infrared Space Observatory (ISO)

1

Leland D. Melvin

1

Cold Atom Laboratory (CAL)

6

Space Flight Awareness (SFA)

1

Earth Observatory

149

Supermassive Black Holes

21

Mini-RF Instrument

1

4

For Colleges & Universities

47

Vertical Motion Simulator

1

Greenhouse Gases

9

Andrew S.W. Thomas

1

Bob Hines

1

Prizes, Challenges & Crowdsourcing News

10

4

Joint Agency Satellite Division

4

Manufacturing, Materials, 3-D Printing

1

SimLabs

2

17

STS-113

1

Euclid

8

Mars Climate Orbiter

1

National Space Council Users' Advisory Group (NSpC UAG)

1

Exoplanet Detection Methods

7

Thomas P. Stafford

3

Gemini XI

1

William C. McCool

1

Advanced Air Vehicles Program

32

Neptune-Like Exoplanets

8

7

TREAT Astronauts Act

1

Goddard Medical and Environmental Division

1

1

Aerosciences Evaluation Test Capabilities

4

Atmospheric Composition

1

1

Rosalind Franklin (Rover)

1

IRIS (Interface Region Imaging Spectrograph)

1

Low-Earth Orbit Economy

10

Communicating and Navigating with Missions

33

SpaceX Commercial Resupply

24

Earth-like Exoplanets

6

Swift Boost Mission

3

MUSE (Multi-slit Solar Explorer)

1

Office of the General Counsel (OGC)

36

Technology Highlights

39

FutureFlight Central

1

Volcanoes

15

HERA (Human Exploration Research Analog)

7

Apollo 14

2

Opportunity (Rover)

4

CADRE (Cooperative Autonomous Distributed Robotic Exploration)

3

Quesst: The Flights

5

Human Lander Challenge

2

Kathryn C. Thornton

1

Centennial Challenges

12

Snow

14

Deimos

1

STS-61

1

Marshall Earth Sciences

29

Christopher L. Williams

8

Solar System Exploration Research Virtual Inst.

3

26

Student Opportunities

1

Meetings, Workshops & Conferences

1

Night Sky Network

37

Fermi Gamma-Ray Space Telescope

16

University Leadership Initiative

6

14

Airborne Science

30

Benefits to Science

1

Planets

30

Science & Research

246

Jessica U. Meir

3

Lunar Trailblazer

4

Courses & Curriculums for Professionals

1

Stellar-mass Black Holes

5

Elliptical Galaxies

6

NASA Home & City

1

The Great Red Spot

1

Gamma-Ray Bursts

13

WB-57

2

Artemis

380

6

Red Dwarfs

1

29

Landsat 8 / LDCM (Landsat Data Continuity Mission)

30

Advanced Capabilities for Emergency Response Operations

1

Asteroids

47

People of Johnson

66

Richard H. Truly

1

Ingenuity (Helicopter)

8

Lenticular Galaxies

4

1

2

215

Supermoons

1

MinXSS (Miniature X-ray Solar Spectrometer)

1

Oceans

45

13

Vesta

2

Gulfstream G-III

1

Andromeda Galaxy

8

Brand Partnerships

1

Prizes, Challenges, & Crowdsourcing News

23

Joint Polar Satellite System (JPSS)

1

SIR-C/X-SAR (Shuttle Imaging Radar-C / X-Band Synthetic Aperture Radar)

1

18

STS-125

1

Mars Exploration Program

10

Native American Heritage Month

7

Exoplanet Discoveries

15

Titan

4

General

642

William R. Pogue

1

Neutral Buoyancy Lab

3

5

Trojan Asteroids

5

Goddard Space Flight Center

691

Aerosols

7

Atmospheric Temperature

1

Pioneer

1

Rosetta

1

Irregular Galaxies

9

Lucy

10

Community Partners

4

SPHEREx (Spectro-Photometer for the History of the Universe and Ices Explorer)

26

5

SWOT (Surface Water and Ocean Topography)

18

Nancy Grace Roman Space Telescope

80

2

Technology Research

10

G. Reid Wiseman

22

Voyager 1

8

Herschel Space Observatory

1

Apollo 15

1

26

CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite)

1

Quesst: The Mission

3

Human Landing System Program

31

Kennedy Space Center

271

Centennial Challenges News

8

6

1

STS-64

2

Marshall Heliophysics & Planetary Science

8

CIPHER (Complement of Integrated Protocols for Human Exploration Research)

1

Solar Wind

14

Droughts

5

Studying Exoplanets

21

Mesosphere

3

NISAR (NASA-ISRO Synthetic Aperture Radar)

22

Find Your Place

11

University Student Research Challenge

5

Grades 9-12 for Educators

14

Airspace Operations and Safety Program

15

Bennu

6

4

Science Activation

67

Jessica Watkins

3

MAF Announcements

1

Sea Surface Topography

1

6

STEM Engagement at NASA

77

Emission Nebulae

4

1

NASA Innovative Advanced Concepts (NIAC) Program

39

Eugene A. Cernan

1

The Human Body in Space

4

Ganymede

1

Weather and Atmospheric Dynamics

9

2017 Solar Eclipse

3

Artemis 1

17

PACE (Plankton, Aerosol, Cloud, Ocean Ecosystem)

29

Red Giants

1

Ice Giants

1

Landsat 9

38

Advanced Plant Habitat (APH)

3

39

People of Marshall

5

Rings of Jupiter

1

InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport)

4

7

Comets

17

Space Launch System (SLS)

114

Earth Science Division

84

Supernova Remnants

8

4

Office of Diversity and Equal Opportunity (ODEO)

1

For Kids and Students

32

Victor J. Glover

22

GUSTO (Galactic/Extragalactic ULDB Spectroscopic Terahertz Observatory)

3

Anil Menon

4

Brewster H. Shaw Jr.

1

Prizes, Challenges, and Crowdsourcing Program

46

Jonny Kim

4

SkyFall

2

Dark Matter & Dark Energy

9

STS-127

1

Mars Exploration Rovers (MER)

4

Natural Disasters

29

Exoplanet Exploration Program

4

TOPEX / Poseidon (ocean TOPography EXperiment)

1

Geospace Dynamics Constellation (GDC)

1

2

Marshall Science Projects

8

30

4

Tropospheric Emissions: Monitoring of Pollution (TEMPO)

11

Goddard Technology

15

AeroSpace Frontiers

59

Atmospheric Waves Experiment (AWE)

3

Pioneer 10

1

RS-25

2

297

Lunar Crater Observation and Sensing Satellite (LCROSS)

1

Compton Gamma Ray Observatory (CGRO)

1

Spinoffs

43

Eclipses

45

System-Wide Safety

7

30

6

Technology Transfer

48

Gaia

1

Voyager 2

7

Hi-Rate Composite Aircraft Manufacturing

4

Apollo 16

1

Origin & Evolution of the Universe

18

Candidate Astronauts

14

Quesst: The Science

3

Human Research Program

28

8

Center Innovation Fund

3

SOFIA (Stratospheric Observatory for Infrared Astronomy) / 747-SP

2

Developmental, Reproductive and Evolutionary Biology

1

STS-65

1

Landslides

3

Citizen Science

105

1

4

Subsonic Flight Demonstrator

3

MESSENGER (MErcury Surface, Space ENvironment, GEochemistry, and Ranging)

1

NOAA (National Oceanic and Atmospheric Administration)

20

Fission Surface Power

1

Uranus

7

6

Alan B. Shepard Jr.

1

1

Pluto

3

Science for Everyone

2

Jet Propulsion Laboratory

277

MAF Employee Assistance Program

5

Seasat

1

Craters

1

4

EMIT (Earth Surface Mineral Dust Source Investigation)

7

Mariner 3

1

NASA Open Source Software

1

Europa

29

The Kuiper Belt

6

Gas Giant Exoplanets

19

What We Do

10

2023 Solar Eclipse

9

Artemis 2

198

Pamela A. Melroy

8

Redstone 3 (Freedom 7)

1

ICESat (Ice, Clouds and Land Elevation Satellite)

1

Advanced Space Suits

2

Astrogram

8

135

Rings of Saturn

11

Integrated Aviation Systems Program

21

Libera

1

Commercial Crew

104

Space Nuclear Propulsion (SNP)

4

Earth Science Technology Office

11

Supernovae

33

Mission Support Directorate

3

Office of International and Interagency Relations (OIIR)

54

For Professionals

2

4

Hayabusa 2

1

1

10

Project Management & Systems Engineering

2

José M. Hernández

1

Skylab

6

DART (Double Asteroid Redirection Test)

9

STS-128

1

2

NEA Scout (Near Earth Asteroid Scout)

1

Exoplanet Science

28

Topography

16

1

WISE (Wide-field Infrared Survey Explorer)

11

Marshall Science Research & Projects

51

4

Exploration Ground Systems

35

Tsunamis

3

GOES (Geostationary Operational Environmental Satellite)

13

Aerospace Safety Advisory Panel

2

Audio

6

Planetary Analogs

3

Russell L. Schweickart

2

IXPE (Imaging X-ray Polarimetry Explorer)

18

Lunar Discovery & Exploration Program

2

1

Spiral Galaxies

74

Ecostress (ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station)

3

T-34C

1

NASA Art Program

3

Open Science Data Repository (OSDR)

1

Technology Transfer & Spinoffs

46

Galaxies

203

Voyager Program

6

High-Speed Flight

4

Apollo 8

3

Orion Multi-Purpose Crew Vehicle

72

6

Quesst: The Team

3

Human Space Travel Research

2

Kjell N. Lindgren

4

Center of Excellence for Collaborative Innovation (CoECI)

50

SOHO (Solar and Heliospheric Observatory)

6

Didymos & Dimorphos

2

STS-66

1

Langley Research Center

155

55

Sounding Rockets

21

2

Subsonic Vehicle Technologies and Tools

4

1

NOAA-20 (JPSS-1)

2

Fission Surface Power (FSP)

2

3

Grades K - 4 for Educators

13

1

9

Podcasts

10

Science in the Air

13

1

MAF Status

1

SeaWiFS (Sea-viewing Wide Field-of-view Sensor)

1

Crew Health and Performance Exploration Analog (CHAPEA)

10

Stennis Space Center

113

Employee Spotlights

1

Mariner 4

2

NASA Safety Center

3

29

28

Gateway Program

21

4

2024 Solar Eclipse

46

Artemis 3

45

Pandora

1

Reflection Nebulae

2

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

5

28

Aeromechanics Research Facilities

1

14

People of Space Operations

2

Robert A. R. Parker

1

Interacting Galaxies

3

10

Commercial Lunar Payload Services (CLPS)

95

Space Operations Mission Directorate

59

Earth Surface & Interior

5

Supersonic Flight

33

Missions

354

Office of Small Business Programs (OSBP)

11

For Researchers

11

Viking 1

1

Heat & Radiation

4

Anne C. McClain

4

Bruce McCandless

2

Project Mercury

3

JPSS-4

1

68

2

STS-129

2

Mars Moons

5

Near Space Network

4

Exoplanet Transits

10

Total and Spectral Solar Irradiance Sensor - 2 (TSIS-2)

1

51

Marshall Space Flight Center

338

7

Exploration Park

2

1

GOES-R

3

AIM (Aeronomy of Ice in the Mesosphere)

1

Aura

2

Planetary Defense

22

S3VI

1

2

3

Convergent Aeronautics Solutions

3

5

Edward G. Gibson

1

Tech Demo Missions

8

NASA Centers & Facilities

160

Opportunities For Educators to Get Involved

21

1

Galaxies, Stars, & Black Holes

78

Wallops Flight Facility

65

High-Tech Computing

14

Apollo 9

2

28

Careers

11

Quesst: The Vehicle

17

Human Spaceflight Mission Directorate

1

LAGEOS (LAser GEOdynamics Satellite)

1

Ceres

2

Sojourner (Rover)

2

Digital Information Platform

9

STS-68

1

ICON (Ionospheric Connection Explorer)

2

Laser Communications Relay

3

Climate Modeling

4

Sounding Rockets Program

15

E-Books

5

Sun-Earth Interactions

4

Meteors & Meteorites

2

NOAA-21 (JPSS-2)

2

Flight Demonstrations and Capabilities

2

USGS (United States Geological Survey)

3

GRAIL (Gravity Recovery And Interior Laboratory)

1

Ames Earth Science Division

1

6

Polar

1

Science Instruments

8

John B. Herrington

1

Magellan

2

Sensing the Universe & Multimessenger Astronomy

4

Cryogenic Fluid Management (CFM)

6

Stennis Test Facility and Support Infrastructure

4

Enceladus

4

Mariner 7

1

NASA Shared Services Center

13

Europa Clipper Resources

8

The Search for Life

12

Gateway Space Station

28

White Sands Test Facility

18

3I/ATLAS

1

Artemis 4

30

Pandora Mission

1

Remote Sensing Technology

3

29

Women's History Month

17

13

Astronauts

109

Perseids

2

Robert D. Cabana

2

International Space Station (ISS)

536

5

Commercial Resupply

49

18

Earth System Observatory (ESO)

5

16

Modeling

4

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2

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18

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1

137

APOD

18

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6

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21

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1

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36

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3

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1

5

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10

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93

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1

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3

9

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72

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3

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4

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6

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14

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26

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1

James A. McDivitt

1

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1

2

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10

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2

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111

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45

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41

Walter M. Schirra Jr.

1

Hispanic Heritage Month

6

1

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1

1

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2

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17

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10

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80

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6

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4

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7

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6

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1

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24

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6

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227

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44

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11

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217

5

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8

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8

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4

1

1

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5

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18

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163

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2

Why Go To Space

2

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8

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10

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16

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235

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4

181

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41

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98

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1

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21

1

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65

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14

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4

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8

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21

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5

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3

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3

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1

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57

Exosphere

2

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1

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2

33

Explore

7

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3

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3

8

B200

3

Planetary Environments & Atmospheres

7

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1

James H. Newman

1

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19

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3

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4

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2

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59

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9

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17

2

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2

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3

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1

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396

Land Use

6

1

45

Discovery Program

2

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