Editors' ChoiceCitizen Science

Crowd-sourcing craters on the Moon

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Science  27 May 2016:
Vol. 352, Issue 6289, pp. 1072-1073
DOI: 10.1126/science.352.6289.1072-d

Citizen science harnesses thousands of volunteers to perform tasks that are difficult to automate but too large for individual researchers. Bugiolacchi et al. present results from Moon Zoo, a website that asks users to identify the positions and sizes of lunar craters. Unfortunately, it is necessary to discard the majority of users' data during quality control, because most didn't correctly classify enough craters to become reliable at the task. Nevertheless, the project did result in crater counts comparable to those from experts, and it identified methods for future citizen science projects, such as how to weight users' expertise and combine all their results into a single catalog.

Icarus 271, 30 (2016).

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