Andromeda Galaxy | Simple Site

Andromeda Galaxy

Spiral Galaxies

Sparkling Andromeda

The Andromeda galaxy, also known as Messier 31 (M31), is a glittering beacon in this image released on June 25, 2025, in tribute to the groundbreaking legacy of astronomer Dr. Vera Rubin, whose observations transformed our understanding of the universe. In the 1960s, Rubin and her colleagues studied M31 and determined that there was some unseen […]

Posted June 26, 2025

Andromeda Galaxy

Chandra X-Ray Observatory

Marshall Astrophysics

Marshall Space Flight Center

NASA’s Chandra Shares a New View of Our Galactic Neighbor

The Andromeda galaxy, also known as Messier 31 (M31), is the closest spiral galaxy to the Milky Way at a distance of about 2.5 million light-years. Astronomers use Andromeda to understand the structure and evolution of our own spiral, which is much harder to do since Earth is embedded inside the Milky Way. The galaxy […]

Posted June 26, 2025

Andromeda Galaxy

Astrophysics Division

Goddard Space Flight Center

Hubble Space Telescope

Interacting Galaxies

Apocalypse When? Hubble Casts Doubt on Certainty of Galactic Collision

As far back as 1912, astronomers realized that the Andromeda galaxy — then thought to be only a nebula — was headed our way. A century later, astronomers using NASA’s Hubble Space Telescope were able to measure the sideways motion of Andromeda and found it was so negligible that an eventual head-on collision with the […]

Posted June 2, 2025

Andromeda Galaxy

Astrophysics Division

Goddard Space Flight Center

Hubble Space Telescope

Spiral Galaxies

NASA’s Hubble Provides Bird’s-Eye View of Andromeda Galaxy’s Ecosystem

Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full Moon. What backyard observers don’t see is a swarm of nearly three dozen small satellite galaxies circling the Andromeda galaxy, like bees around a hive.

Posted February 27, 2025

Andromeda Galaxy

Astrophysics Division

Goddard Space Flight Center

Hubble Space Telescope

Spiral Galaxies

NASA’s Hubble Traces Hidden History of Andromeda Galaxy

In the years following the launch of NASA’s Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby stellar island to our Milky Way — the magnificent Andromeda galaxy (Messier 31). It can be seen with the naked eye on a […]

Posted January 16, 2025

Andromeda Galaxy

Astrophysics Division

Goddard Space Flight Center

Hubble Space Telescope

Stars

NASA Celebrates Edwin Hubble’s Discovery of a New Universe

For humans, the most important star in the universe is our Sun. The second-most important star is nestled inside the Andromeda galaxy. Don’t go looking for it — the flickering star is 2.2 million light-years away, and is 1/100,000th the brightness of the faintest star visible to the human eye. Yet, a century ago, its […]

Posted January 15, 2025

Andromeda Galaxy

Spitzer Space Telescope

Supermassive Black Holes

Spitzer Space Telescope Captures Galactic Snack

This image, released on May 9, 2024, from NASA’s retired Spitzer Space Telescope shows streams of dust flowing toward the supermassive black hole at the heart of the Andromeda Galaxy. These dust streams can help explain how black holes billions of times the mass of our Sun can satiate their big appetites but remain “quiet” […]

Posted May 9, 2024

General

Andromeda Galaxy

Galaxies, Stars, & Black Holes

Spitzer Space Telescope

NASA Images Help Explain Eating Habits of Massive Black Hole

Data from NASA’s retired Spitzer Space Telescope has given scientists new insights into why some supermassive black holes shine differently than others. In images from NASA’s retired Spitzer Space Telescope, streams of dust thousands of light-years long flow toward the supermassive black hole at the heart of the Andromeda galaxy.

Posted May 9, 2024

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

21

Laser Communications Relay

3

Meetings, Workshops & Conferences

1

CubeSat Launch Initiative

15

Terrestrial Exoplanets

6

Europa

28

Why Go To Space

2

MinXSS (Miniature X-ray Solar Spectrometer)

1

STS-125

1

DC-8

6

The Sun

49

Exoplanet Transits

7

Nancy Grace Roman Space Telescope

53

Opportunities For International Participants to Get Involved

12

Exploration Systems Development Mission Directorate

40

Grades 9-12 for Educators

10

2017 Solar Eclipse

3

Asian American and Native Hawaiian Pacific Islander Heritage

5

Red Dwarfs

1

Solar System Exploration Research Virtual Inst.

3

Johnson Leadership

1

Mars 2020

24

Commercial Lunar Payload Services (CLPS)

85

Supersonic Flight

24

Earth's Vital Signs

1

2

Neutral Buoyancy Lab

1

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6

Gamma-Ray Bursts

10

Humans in Space

314

Ames Space Biosciences

11

Brand Partnerships

1

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1

STEM Engagement at NASA

71

LISA (Laser Interferometer Space Antenna)

2

Apollo 12

3

CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite)

1

Seyfert Galaxies

4

Lunar Reconnaissance Orbiter (LRO)

17

STS-64

2

Diversity at NASA

24

Transformational Tools Technologies

8

NASA Innovative Advanced Concepts (NIAC) Program

26

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3

For Colleges & Universities

41

Hayabusa 2

1

Advanced Space Suits

2

Astrophysics Pioneers

1

Robert L. Crippen

1

Space Launch System (SLS)

86

Katherine Johnson IV and V Facility

3

Marshall Earth Sciences

29

Convergent Aeronautics Solutions

3

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14

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5

Wallops Flight Facility

55

NISAR (NASA-ISRO Synthetic Aperture Radar)

10

Planets

27

General

559

IMAP (Interstellar Mapping and Acceleration Probe)

2

Office of Small Business Programs (OSBP)

11

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7

2

Goddard Technology

13

16

Armstrong Test Facility (Plum Brook)

4

Quesst: The Flights

4

Center Innovation Fund

3

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4

James Webb Space Telescope (JWST)

125

Magnetars

2

54

Studying Exoplanets

18

Earth Day

5

Uranus

5

Natural Disasters

24

Pathfinding for Airspace with Autonomous Vehicles

1

FutureFlight Central

1

Hispanic Heritage Month

6

Air Mobility Pathfinders project

5

Bennu

4

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

1

Spinoffs

39

Laser Interferometer Gravitational Wave Observatory (LIGO)

3

Mesosphere

3

CubeSats

28

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1

28

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12

4

STS-127

1

Deep Space Climate Observatory (DSCOVR)

3

The Sun & Solar Physics

3

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69

16

Opportunities For Researchers to Get Involved

1

Explore

4

6

2023 Solar Eclipse

9

Associate Administrator Awards

5

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1

Solar Wind

14

Johnson Space Center

317

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6

Commercial Resupply

35

1

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4

Viking 1

1

24

Physical Sciences Program

3

Ganymede

1

Hurricanes & Typhoons

4

Analog Field Testing

7

Brewster H. Shaw Jr.

1

Science-enabling Technology

45

4

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

1

Apollo 14

2

Candidate Astronauts

8

Shuttle Radar Topography Mission (SRTM)

2

10

STS-65

1

Doing Business with NASA

2

Transformative Aeronautics Concepts Program

16

NASA Open Source Software

1

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

16

13

114

13

Atmospheric Composition

1

Robert L. Gibson

1

Space Nuclear Propulsion (SNP)

2

Kathleen Rubins

2

Marshall Heliophysics & Planetary Science

8

1

Technology Demonstration Missions Program

11

Emission Nebulae

2

Walter M. Schirra Jr.

1

NOAA (National Oceanic and Atmospheric Administration)

18

4

Geospace Dynamics Constellation (GDC)

1

In-flight Education Downlinks

23

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