Join the Merger Refinement workflow if you'd like to determine if galaxies are merger! If you'd like to help identify specific tidal features in mergers selected from the first task, join the Tidal Tagging workflow!
Zooniverse Talk
Chat with the research team and other volunteers!
Galaxy Zoo: Tidal Tales Statistics
View more statsKeep track of the progress you and your fellow volunteers have made on this project.
Every click counts! Join Galaxy Zoo: Tidal Tales's community to complete this project and help researchers produce important results. Click "View more stats" to see even more stats.
By the numbers
Message from the researcher
Connect with the research team on Talk to learn more about this project!
About Galaxy Zoo: Tidal Tales
Galaxies collide, stretch, and reshape one another as they merge, leaving behind tidal tails, streams, shells, and other faint structures that record these dramatic encounters. These features are more than striking patterns of light; they are the evidence astronomers use to understand how galaxies grow, transform, and evolve over billions of years.
In Galaxy Zoo: Tidal Tales, you’ll explore deep, high-resolution images from the European Space Agency’s Euclid mission, built to map the dark universe with unprecedented clarity. By identifying the subtle distortions and tidal features in these galaxies, you’ll help distinguish true interactions from chance alignments and build a clearer picture of how galaxies assemble over cosmic time. Your classifications will directly support new discoveries and improve the tools we use to study the evolving universe.
Background image: ESA/Webb, NASA & CSA, L. Armus, A. Evans
 |  |
This work is funded by NASA-Euclid grant #80NSSC25K0005. Learn more about NASA Citizen Science Projects here: science.nasa.gov/citizenscience. This project makes use of Q1 data from European Space Agency's Euclid mission; learn more here: cosmos.esa.int/web/euclid/euclid-q1-data-release