Reviews Space

An astrophysicist honors citizen scientists in the age of big data

The Crowd and the Cosmos examines the role of amateurs in science

Pinwheel galaxy

The Pinwheel Galaxy, shown in this Hubble Space Telescope image, is an example of a spiral galaxy. In 2007, the Galaxy Zoo project asked citizen scientists to classify galaxies based on shape — spiral or elliptical.

ESA, NASA

By Erin Wayman

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