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Science Mission Directorate

Planetary Defense

Planetary Defense Coordination Office

Planetary Science

Planetary Science Division

Near-Earth Asteroids as of August 31, 2023

Near-Earth objects (NEOs) are asteroids and comets that orbit the Sun like the planets with orbits that come within 30 million miles of Earth’s orbit.

Posted October 17, 2023

DART (Double Asteroid Redirection Test)

Didymos & Dimorphos

Planetary Defense

Planetary Defense Coordination Office

Planetary Science

Planetary Science Division

Double Asteroid Redirection Test Post-Impact Image Gallery

After 10 months flying in space, NASA’s Double Asteroid Redirection Test (DART) – the world’s first planetary defense technology demonstration – successfully impacted its asteroid target on Monday, September 26 at 7:14 p.m. EDT. as the world’s first attempt to move an asteroid in space.

Posted October 16, 2023

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17

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22

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9

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29

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5

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7

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67

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2

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13

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10

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5

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1

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32

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80

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6

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147

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1

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7

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3

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1

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8

7

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1

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1

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4

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1

1

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1

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1

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10

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33

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24

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6

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3

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1

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36

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39

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1

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14

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7

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2

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4

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3

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5

Human Lander Challenge

2

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1

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12

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14

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1

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1

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29

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8

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3

26

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1

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1

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37

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16

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6

14

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30

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1

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30

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246

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3

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4

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1

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5

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6

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1

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13

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2

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379

6

Red Dwarfs

1

29

Landsat 8 / LDCM (Landsat Data Continuity Mission)

30

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1

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47

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66

Richard H. Truly

1

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8

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4

1

2

215

Supermoons

1

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1

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45

13

Vesta

2

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1

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8

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1

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23

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1

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1

18

STS-125

1

Mars Exploration Program

10

Native American Heritage Month

7

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15

Titan

4

General

642

William R. Pogue

1

Marshall Heliophysics & Planetary Science

8

Neutral Buoyancy Lab

3

5

Trojan Asteroids

5

Goddard Space Flight Center

690

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7

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1

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1

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1

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9

Lucy

10

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4

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26

5

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18

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80

2

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10

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22

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8

Herschel Space Observatory

1

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1

26

CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite)

1

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3

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31

Kennedy Space Center

271

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8

6

1

STS-64

2

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38

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1

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14

Droughts

5

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21

Mesosphere

3

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22

Find Your Place

11

University Student Research Challenge

5

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14

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15

Bennu

6

4

Science Activation

67

Jessica Watkins

3

MAF Announcements

1

Sea Surface Topography

1

6

STEM Engagement at NASA

77

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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

Advanced Plant Habitat (APH)

3

39

People of Marshall

5

Rings of Jupiter

1

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4

7

Comets

17

Space Launch System (SLS)

114

Earth Science Division

84

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8

4

Office of Diversity and Equal Opportunity (ODEO)

1

For Kids and Students

32

Victor J. Glover

22

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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

42

Eclipses

45

System-Wide Safety

7

29

6

Technology Transfer

47

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

WISE (Wide-field Infrared Survey Explorer)

11

Advanced Space Suits

2

Astrogram

8

134

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

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

45

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

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

5

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

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