  The European Open Science Cloud aims to make all data Findable, Accessible,
Interoperable and Reusable. By far the largest community of users of the
European Open Science Cloud is the science-inclined public. These users need a
more curated experience of open science than subject specialists, but
nevertheless make very substantial research contributions in open science,
especially in crowdsourced data mining, i.e. citizen science. This short,
non-technical invited review presents applications of citizen science in the
European Open Science Cloud, with a particular focus on astrophysics and
astroparticle physics.
