Halley Armada

The Halley Armada is the name of five space probes sent to examine Halley's Comet during its 1986 sojourn through the inner Solar System, connected with apparition "1P/1982 U1". The armada consisted of one probe from the European Space Agency, two probes that were joint projects between the Soviet Union and France and two probes from the Institute of Space and Astronautical Science of Japan.

Probes involved (in order of closest approach):

Without the measurements from the other space probes, Giotto's closest distance would have been 4,000 km instead of the 596 km achieved.

Other space probes had their instruments examining Halley's Comet:

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