[Moderator note: See Raven.'s updated version, currently here] CactEye is a plugin and set of parts that allow for modular orbital telescopes. CactEye telescopes feature a fully-functional science system, and are upgradeable/serviceable (primarily through Kerbal Attachment System). Orbital telescopes also now become fundamental to discovering asteroids. [TABLE] [TR] [TD][/TD] [TD] PARTS CactEye Optical System (left) The main part of the telescope; optical systems are the actual telescope