Volunteers achieve 200,000 galaxy classifications in citizen scientist project

A “classification” is when a volunteer or citizen scientist finishes marking up or sorting one image or other piece of data. Each classification done by volunteers for the Redshift Wrangler project tells us something about the distance and age of a far-away galaxy, bringing us one step closer to understanding how galaxies evolve. These volunteers have met a major milestone: 200,000 classifications completed.