NASA Launched Overlap Zoo Citizen Science Project
The initiative enlists volunteers to help map cosmic dust using overlapping galaxy silhouettes.
Updated on Sept. 30, 2026 in Space

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NASA has introduced the Overlap Zoo project, an initiative designed to study cosmic dust by analyzing overlapping galaxies. Volunteers are tasked with classifying and verifying these cosmic pairs to support professional astronomical research.
Why it matters
The massive volume of data captured by modern telescopes makes it impossible for professional astronomers to manually categorize every galaxy pair. Citizen science allows for the creation of large-scale catalogs that are essential for accurate dust analysis and distance estimation.
The project utilizes image candidates previously identified by the Galaxy Zoo project. Volunteers use specific outlining tools to mark galaxy structures, which are then used to silhouette dust in the foreground.
The players
NASA
The United States government agency responsible for the civilian space program, as well as aeronautics and space research.
Galaxy Zoo
A well-known internet-based citizen science project which enlists the public to assist in the morphological classification of large numbers of galaxies.
The details
Participants in the Overlap Zoo program view images of potential galaxy pairs to classify key features and mark outlines. These silhouettes allow researchers to measure the dust content in foreground galaxies more accurately than was previously possible.
Timeline
September 30, 2026: NASA Science announced the launch of the Overlap Zoo citizen science project.
The Big Picture
The project builds on the collaborative framework established by the Galaxy Zoo project. It shifts the focus toward utilizing specific gravitational silhouettes to resolve structural gaps in extragalactic dust mapping.
Participation in this project allows citizen scientists to contribute directly to astronomical catalogs that improve our understanding of the universe. These insights into cosmic dust help researchers refine measurements of distance across deep space.
The takeaway
Citizen science remains a vital tool for processing the vast quantities of imagery generated by modern deep-space observations. Interested individuals can contribute to significant astronomical breakthroughs by assisting in the classification of galaxy structures from their own homes.
Further reading
Learn more about ongoing astronomical initiatives in the Space section.
More information
To view project guidelines and start classifying images, visit the Overlap Zoo citizen science portal.
Source note: This article includes information reported by Science @ NASA.
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