Unmanned spacecraft sent primarily to observe asteroids and comets.
Study on Autonomous Nano Technology Swarm, a novel concept to survey the asteroid belt using an autonomously operating spacecraft swarm.
Information on the European mission to Halley's Comet (1985-1992).
Project documentation and scientific results of the Giotto mission, collected by the European Space Agency.
Project homepage for the planned asteroid sample return mission, by the Japanese Institute of Space and Astronautical Science.
Mission to rendezvous with the comet Churyumov-Gerasimenko and deploy a lander on its surface. News, mission overview and scientific data compiled by the project team.
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