Accelerating for half of the ride, and braking for the other half. The advantage of avoiding squishy human cargo for high acceleration. The difference between the Alucard and the Alcubierre drive technologies (hint: a miserable pile of secrets). Special floaty physics, magnets on your feet, and fake karate.
Exploring the growing options for Earth-like life in the solar-system. Kepler 22b. Where did the megafauna go? Exogestation - growing babies on alien soil.
Sourcing and preparing rat meat. Snails. Face/Off and changing your identity.