Saturn craft Cassini-Huygens promises four years of scientific discovery — but in a little over ten days, on Christmas Eve, the most-awaited mission task will commence as the Huygens probe separates and descends into the vanilla shroud of moon Titan, camera and sensors at the ready. While spaceflight may not turn as many heads as Apollo 11 briefly managed, do yourself a favor and keep watch: this is history in the making.