Sykar, located on the edge of the Uncharted Territories, was once a beautiful world, resembling something of a planet-wide garden. At some point, however, the Peacekeepers secretly took control of the planet and installed a puppet government that answered exclusively them. The Sykaran civilization that had developed on the planet were forced farming tannot root, so that it could be coverted into Chakan oil.
With the aid of Moya and her crew -- especially Rygel XVI's Hynerian digestive system -- the scheme was exposed. The planet's small resistance group joined forces with the puppet government and worked to overthrow the Peacekeepers, gaining sovereignty so that they could again govern themselves.
Sykar is a planet that appeared in an episode of the first season of Farscape.