Giotto Launch Date: 02 July 1985 Launch Vehicle: Ariane Planned on-orbit mass: 582.7 kg Power System: Solar cell array of 196 W The Giotto mission was designed to study Comet P/Halley, and also studied Comet P/Grigg-Skjellerup during its extended mission. The image at the top of the page is the nucleus of Halley taken by Giotto. The major objectives of the mission were to: (1) obtain color ...

Photographs of Halley's Comet.