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Galaxy Zoo
Galaxy Zoo invites volunteers to participate in research projects and provides access to project discussions and statistics.
About Galaxy Zoo
Galaxy Zoo is a citizen science project run through the Zooniverse platform. Volunteers look at telescope images of distant galaxies and classify them by shape. The project states that this work helps astronomers understand how galaxies formed. The project page lists a launch date of March 15, 2018, and a researcher's message says volunteers have helped astronomers for over 15 years.
The site provides a Zooniverse Talk space for chatting with the research team and other volunteers, along with all-time and active project statistics. Images come from several telescopes and survey facilities, including the Sloan Digital Sky Survey, NASA, ESA, and ground-based observatories. The most recent images include early data from the NSF-DOE Vera C. Rubin Observatory.
Key features
- Classify telescope images of galaxies by their shapes
- Zooniverse Talk for discussion with the research team and volunteers
- All-time and active statistics, including percent complete for workflows
- Images from the Sloan Digital Sky Survey, NASA, ESA, and ground-based telescopes
- Early data images from the Vera C. Rubin Observatory
- Classifications checked against the work of other volunteers
Best for: People who want to help astronomers classify galaxies from telescope images and are willing to learn the task as they go.
Good for
- Classifications are backed by the work of other volunteers, so a few individual errors carry less weight
- Volunteers can discuss the project directly with the research team
- Project statistics show progress across all-time and active workflows
Watch out for
- The most recent images are described as early data, which may be less complete than older datasets
Galaxy Zoo at a glance
- Category
- Research & Data › Open Data & Datasets
- Type
- Website
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 6, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Galaxy Zoo FAQ
Do I need to classify every galaxy perfectly?
No. The project states that classifications are backed up by the work of other volunteers, so getting a few wrong is not a big deal.
Which telescope images are the newest on the site?
The latest images show early data from the NSF-DOE Vera C. Rubin Observatory.
Can volunteers talk with the research team?
Yes. Zooniverse Talk is described as a place to chat with the research team and other volunteers.
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