(Shot of Prof Eel in absolute sparkling convulsions goes to distance shots of planet and antiquated Earth spaceship in orbit: L-1 again. Then suborb launch drops, spirals to surface. Twenty bulky spacesuited figures emerge--not the same as in opening shots. This looks like actual photographic record of landing, which seems unlikely. Beautiful damn reconstruction, if so. Narration commences with Aldebaran date. I substitute Terran Calendar date we know for same, and accept gift of one more Rosetta Stone.) This time is the year 2053. For more than six decades, this primitive giant of space has ployed its way through the restrictive medium of slowspace. Twice before in its travels, the great ship has paused. First at Procyon, where they found the system both uninhabited and uninviting; and at the time they did not yet know what urgent cause they had to make a landing. (Our date for Procyon exploration, from L-1 log, is 2016, which fits.) Then at Saiph, two decades later, when they could provide a bare minimum of hospitality--no more than safe footing for their launches, in which they would live while they tried to ensure their future survival. But this system's planets offered little hope. One Earth-size enveloped in horror-film type gases and nasty moistures. One more with dense atmosphere of high acid content: probe from ship corroded in minutes. They limped on. A half decade later they came to a time of decision, and determined not to try for the next nearest star system, but for the closest one from which their radio had received signs of intelligent life: Aldebaran. What they had learned between Procyon and Saiph was that those of their crew who were born in space were not viable. The ship had been planned to continue, if necessary, long beyond the lifespan of its first crew. The Terran planners had ingeniously bypassed their most acute psychosocial problem, and staffed the ship with a starting crew of just one sex. Forty females started the journey, with a supply of sperm from one hundred genetically selected males carefully preserved on board. Sex determination in this species is in the male chromosome, and most of the supply had been selected for production of females. The plan was to maintain the ship in transit with single sexed population, and restore the normal balance only at the end of the journey.