Comet Fever - The neighborhood is having a star gazing party when Mindy discovers what may be a new comet. Carrot and Mindy decide to surprise the others and make their very own comet in the backyard using ingredients from home! Asteroid Patrol - When Sean learns that asteroids are floating around the solar system, he decides to set up a homemade asteroid watch-station in the treehouse, and gets all the other kids involved.