1 - Tour of the Solar System/Jet Cooks Dinner
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.
Season 1
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Episodes
2 - How We Found Your Sun/Treehouse Observatory
Jet explains how his family found Earth; the kids turn a treehouse into their own observatory to view the nighttime sky.
3 - Round and Round/The Plant From Bortron 7
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.
4 - Just the Right Distance from the Sun/Solar Power Rover
The kids learn how Earth is the perfect distance from the sun; Jet, Sean and Sydney learn about solar power.
5 - How Come the Moon Has Craters?/Backyard Moon Base
6 - How Come the Moon Changes Shape?/Night of a Bazillion Stars
7 - Earth Mission to Moon/Mindy's Moon Bounce House
The kids do a re-enactment of the first moon landing. Jet gives a gift to Mindy, which allows her to defy gravity.
8 - Beep has the Blues/Chore Day
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.
9 - A Kid's Guide to Mars/Jet 2
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.
10 - More Than One Moon/Visit to Mom's Office
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.
11 - Mission to Mars/Sound Abound
Jet and Sydney go away on a mission to Mars; Sean is surrounded by noise while trying to complete his science project.
12 - What's Up With Saturn's Rings?/Sunspot's Night Out
13 - The Grandest Canyon/A Visit to the Planetarium
14 - A Visit From Uncle Zucchini/Mindy's Weather Report
15 - Ice Moon Enceladus/What Goes Up...
16 - Solar System Bake-Off!/Kid-Kart Derby
17 - Asteroids, Meteors, and Meteorites/Mindy's Meteorite Stand
18 - Comet Fever/Asteroid Patrol
19 - Mindy Pet-sits/Treehouse Space Station
20 - Date Night/Face on the Fritz
21 - So Many Moons/Project Pluto
22 - Sunspot and the Great Red Spot/Uncle Zucchini Babysits
23 - Diggin' Earth/Mindy's Mistery
24 - Which Moon is Best?/Detective Mindy
25 - Tiny Blue Dot/Earth Camping
26 - What's a Satellite/Satellite Selfie
27 - Space Junk/Scientific Sean
The kids meet up with Uncle Zucchini and start to clean up their space neighborhood; Jet, Sydney, and Sean build paper airplanes.
28 - Beep and Boop's Game/Constellation Prize
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.
29 - Sunday Drive
The Propulsions try out a new dashboard operating system, which only serves to confuse them as their test drive to Mars goes horribly wrong.
30 - Total Eclipse of the Sunspot/Sean's Year in Space
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.
31 - Jet's First Halloween
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.
32 - Whole Lotta Shakin/My Fair Jet
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.
33 - From Pluto With Love/A Star is Born
The kids make their own Valentine's; Sydney directs everyone in a backyard movie.
34 - The Mindysphere/Lone Star
Mindy explores her special zone with her friends; a dig uncovers a special item linked to the wild west past.
35 - Space Race/Jet's Time Machine
Celery competes against her brother, Uncle Zucchini, in a race; Jet tests his first experimental time machine.
36 - Sean's Neptune Tune/Earth Day Birthday
Jet proposes a song to calm Sean's nervousness about flying; the kids plan a surprise party for Jet.
37 - Castaway Carrot/Jet Can't Sleep
Celery, Jet and Sunspot accidentally leave Carrot on the moon. / A loud thunderstorm jolts everyone awake.
38 - Holidays in Boxwood Terrace
39 - Not a Sound/Mindy in Space