Celery teaches Jet, Sean, Sydney and Mindy about the planets in our solar system; Sydney, Mindy, Sunspot and Sean help Jet cook for his parents.
Jet explains how his family found Earth; the kids turn a treehouse into their own observatory to view the nighttime sky.
The kids learn how the planets orbit the sun and rotate on their own axes at the same time; Jet gets surprising results when he attempts to grow a plant from his home planet.
The kids learn how Earth is the perfect distance from the sun; Jet, Sean and Sydney learn about solar power.
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The kids do a re-enactment of the first moon landing. Jet gives a gift to Mindy, which allows her to defy gravity.
Beep is sad because her sister Boop is sick and can't move so the kids fly to Mars to figure out what is wrong; Jet and Sean help Sydney turn her chores into fun science games.
The kids join Celery and Carrot on a trip to Mars; and Jet builds a robot version of himself so that he can be in two places at once.
Mindy finds out there is more than one moon in the solar system; Sean and Sydney take Jet to meet Sean's mom at the Deep Space Array.
Jet and Sydney go away on a mission to Mars; Sean is surrounded by noise while trying to complete his science project.
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The kids meet up with Uncle Zucchini and start to clean up their space neighborhood; Jet, Sydney, and Sean build paper airplanes.
The kids help get Boop over a ravine on Mars, and learn that satellites help scientists communicate with far away rovers; the kids learn about constellations.
The Propulsions try out a new dashboard operating system, which only serves to confuse them as their test drive to Mars goes horribly wrong.
Sunspot acts strange when Mindy, Jet, Sean and Sydney use a solar panel to try to improve energy efficiency; Sean is excited about NASA's Year in Space program.
Sydney, Sean and Mindy plan fun things for Jet's first Halloween, including carving jack-o'-lanterns, dressing up in costumes and going trick-or-treating; Carrot and Celery turn their garage into a haunted house.
Sunspot and the kids attempt to build the tallest tower on the moon; Sean and Sydney want to take Jet to the DSA Open House.
The kids make their own Valentine's; Sydney directs everyone in a backyard movie.
Mindy explores her special zone with her friends; a dig uncovers a special item linked to the wild west past.
Celery competes against her brother, Uncle Zucchini, in a race; Jet tests his first experimental time machine.
Jet proposes a song to calm Sean's nervousness about flying; the kids plan a surprise party for Jet.
Celery, Jet and Sunspot accidentally leave Carrot on the moon. / A loud thunderstorm jolts everyone awake.
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No overview available.
No overview available.