NASA Shares New Views of Our Galactic Neighbor, Andromeda
- NASA released a new composite image of the Andromeda galaxy in June 2025 to honor astronomer Vera Rubin's contributions.
- Rubin and colleagues discovered in the 1960s that unseen matter affected Andromeda's rotation, leading to the concept of dark matter.
- Andromeda, about 2.5 million light-years away and twice the size of the Milky Way, provides key insights into galaxy structure and evolution.
- The image incorporates X-ray data showing high-energy radiation near Andromeda's supermassive black hole, which is 100 million times the sun's mass.
- Rubin's legacy includes the 2025 U.S. Mint quarter honoring her and the Vera C. Rubin Observatory beginning a 10-year southern sky survey.
19 Articles
19 Articles


Listen to the Andromeda galaxy's stars played as musical notes in eerie NASA video
NASA's Chandra Observatory has combined different wavelength images of the Andromeda galaxy to honor astronomer Vera Rubin, and then created a music video by converting the light in those images to musical notes.
Hello, neighbor! See the Andromeda galaxy like never before in stunning new image from NASA's Chandra telescope
Andromeda never looked as good as it does in a new image from the Chandra X-ray observatory and a range of powerful telescopes. A fitting tribute to dark matter pioneer Vera Rubin.
NASA shares new views of our galactic neighbor, Andromeda
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.
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