(09/21/1997) --- The Cassini spacecraft, with the Huygens probe seen on the right in this photo, sits atop a Titan IVB expendable launch vehicle at Launch Pad 40 at Cape Canaveral Air Station, where it awaits placement of its payload fairing to protect Cassini during launch. Instruments mounted on the Huygens probe, which was developed by the European Space Agency (ESA), will receive atmospheric and surface data on Saturn’s main moon, Titan, to send back to Earth as part of the mission. A four-year, close-up study of the Saturnian system, the mission is scheduled for launch from Cape Canaveral Air Station in mid-October