Tags: Spacecraft.
Suisei (すいせい; Japanese for Comet) originally known as Planet-A was an unmanned space probe developed by the Institute of Space and Astronautical Science (now part of the Japanese Aerospace Exploration Agency or JAXA).It constituted a part of the Halley Armada together with Sakigake the Soviet/French Vega probes the ESA Giotto and the NASA International Cometary Explorer to explore Halley’s Comet during its 1986 sojourn through the inner solar system.
