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NASA’s Swift Mission Ends, Leaves Behind Scientific Bonanza

NASA’s Neil Gehrels Swift Observatory has ended its science mission now that the spacecraft is orbiting less than 171 miles (275 kilometers) above Earth’s surface. The greater atmospheric drag at this height prevents the satellite’s telescopes from steadily gazing at their astronomical targets. Swift conducted its final observation on Oct. 20.

Posted October 24, 2026

Fermi Gamma-Ray Space Telescope

Goddard Space Flight Center

Nebulae

Neil Gehrels Swift Observatory

Stars

Supernova Remnants

Ultraviolet Light

X-ray Astronomy

NASA’s Fermi Mission Uncovers Possible Sibling Supernova Remnants

A new study of two supernova remnants, the debris left behind after stars explode, suggests the explosions came from stellar siblings that once orbited each other. The first star’s detonation sent its binary companion hurtling through space, and then, after traveling for thousands of years, the surviving star blew up too.

Posted June 17, 2026

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People of Goddard

81

Emission Nebulae

5

TRACERS

1

X-ray Astronomy

6

1

Eugene A. Cernan

1

Ronald E. McNair

1

Gamma-Ray Bursts

15

James Webb Space Telescope (JWST)

171

3

Aqua

11

Space Technology Research Grants

17

NASA Art Program

3

CIPHER (Complement of Integrated Protocols for Human Exploration Research)

1

Droughts

7

Technology

114

VIPER (Volatiles Investigating Polar Exploration Rover)

18

26

Quesst: The Flights

5

Fermi Gamma-Ray Space Telescope

16

16

Hurricanes & Typhoons

18

Land Use

6

Air Traffic Management - Exploration

19

Barry E. Wilmore

2

Small Satellite Missions

27

STS-41D

1

Marshall Space Flight Center

356

4

6

Blogs

240

6

STS-88

1

2

NOAA (National Oceanic and Atmospheric Administration)

20

Dark Matter & Dark Energy

9

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4

Planets

30

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4

General

679

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2

Advanced Air Mobility

19

Artificial Intelligence (AI)

19

Sea Ice

15

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16

Mariner 7

1

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3

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17

Earth Science Division

89

Terrestrial Exoplanets

9

2

7

Read it!

3

13

1

In-flight Education Downlinks

30

Laser Interferometer Gravitational Wave Observatory (LIGO)

4

Analog Field Testing

7

Richard A. Mastracchio

1

G. Reid Wiseman

26

1

Investigation of Convective Updrafts (INCUS)

1

5

Apollo 11

6

C-130

1

Space Communications & Navigation Program

49

SunRISE (Sun Radio Interferometer Space Experiment)

3

Missions

371

Center Innovation Fund

3

Office of Diversity and Equal Opportunity (ODEO)

1

Developmental, Reproductive and Evolutionary Biology

1

1

Vegetable Production System (VEGGIE)

1

2

Prizes, Challenges, & Crowdsourcing News

32

4

Goddard Space Flight Center

733

Hubble Space Telescope

252

23

Aeronautics STEM

5

Astrophysics Explorers Program

4

Shuttle Radar Topography Mission (SRTM)

2

Strategic Integration and Management Division

1

5

Near Space Network

4

Compton Gamma Ray Observatory (CGRO)

1

Eclipses

46

The Sun

67

Wildfires

40

People of Johnson

67

EMIT (Earth Surface Mineral Dust Source Investigation)

7

Tracking and Data Relay Satellite (TDRS)

2

4

Pioneer

1

Europa

29

Rosalind Franklin (Rover)

2

Ganymede

1

Jasmin Moghbeli

11

Lunar Explorer Instrument for space biology Applications (LEIA)

1

Armstrong Flight Research Center

150

SBIR STTR

8

34

Magellan

2

NASA Centers & Facilities

164

Citizen Science

108

4

Technology Demonstration

21

Virgil I. Grissom

3

Origin & Evolution of the Universe

18

Quesst: The Mission

3

Find Your Place

11

Grades 9-12 for Educators

14

Hybrid Thermally Efficient Core

3

Landsat

17

Air Traffic Management and Safety

3

Becoming an Astronaut

5

Small Spacecraft Technology Program

21

STS-51A

1

Marshall Test Facility and Support Infrastructure

3

7

Craters

3

Blue Ghost (lander)

4

2

STS-9

2

Meteors & Meteorites

4

NOAA-20 (JPSS-1)

3

DART (Double Asteroid Redirection Test)

9

Ultraviolet Light

2

4

Exoplanet Science

29

Geospace Dynamics Constellation (GDC)

1

Johnson Space Center

436

Advanced Air Transport Technology

7

Asian American and Native Hawaiian Pacific Islander Heritage

5

5

Starburst

1

1

NASA Shared Services Center

14

Commercial Crew

111

Earth Science Technology Office

11

Terrestrial Planets

1

Water & Energy Cycle

5

PACE (Plankton, Aerosol, Cloud, Ocean Ecosystem)

31

Red Dwarfs

1

For Kids and Students

32

Gulfstream G-III

1

In-Situ Resource Utilization (ISRU)

2

Launch Services Office

16

10

People of Marshall

5

Richard H. Truly

1

Gaia

1

HERA (Human Exploration Research Analog)

7

Io

5

LISA (Laser Interferometer Space Antenna)

4

Apollo 12

3

C-20A

3

Space Communications Technology

22

Sunspots

4

Modeling

4

Center of Excellence for Collaborative Innovation (CoECI)

57

Office of International and Interagency Relations (OIIR)

68

Didymos & Dimorphos

2

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11

Vegetation

11

8

Prizes, Challenges, and Crowdsourcing Program

58

1

Goddard Technology

15

Human Dimensions

21

Katherine Johnson IV and V Facility

4

Aeronautics Technology

8

Astrophysics Pioneers

3

1

STS-1

1

Mars Pathfinder

1

Near-Earth Asteroid (NEA)

10

1

Ecostress (ECOsystem Spaceborne Thermal Radiometer Experiment on Space Station)

3

The Sun & Solar Physics

6

Wildland Fire Management

5

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