1) Saturn run
"The year is 2066. A Caltech intern inadvertently notices an anomaly from a space telescope--something is approaching Saturn, and decelerating. Space objects don't decelerate. Spaceships do. A flurry of top-level government meetings produces the inescapable conclusion: Whatever built that ship is at least one hundred years ahead in hard and soft technology, and whoever can get their hands on it exclusively and bring it back will have an advantage...