Ready Jet Go!

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Ready Jet Go!
Ready Jet Go! logo.png
Created byCraig Bartlett
Directed by
  • Craig Bartlett
  • Rusty Tracy
  • Zac Palladino
Theme music composer
Opening theme"Ready Jet Go!"
Ending theme"Ready Jet Go!" (instrumental)
ComposerJim Lang
Country of originUnited States
No. of seasons2
No. of episodes66 (list of episodes)
Executive producers
  • Ann Hoyt
  • Susan Edumunson
  • Tom Sanders
Production companies
Original networkPBS Kids
Original release
  • Series:

February 15, 2016 (2016-02-15) - May 6, 2019 (2019-05-06)[1]

  • Film:

August 14, 2017 (2017-08-14) - June 17, 2019 (2019-06-17)

Ready Jet Go! is a computer-animated educational children's television series produced by Wind Dancer Films. The series aired new episodes on PBS Kids from February 15, 2016 to May 6, 2019, although re-runs continue to this day. It was created by animator and Hey Arnold! creator Craig Bartlett,[2] and is produced in cooperation with NASA's Jet Propulsion Laboratory. The show teaches science and astronomy.[3]

The show is aimed at children ages 3 to 8. On August 17, 2016, PBS Kids announced the renewal of the series for a second season, which premiered on April 2, 2018.[4]


Jet Propulsion and his family are from the fictional planet Bortron 7 which orbits around a red dwarf called Bortron. They live at Boxwood Terrace in Washington, [5] where they study human customs and Earth environments for a travel guide. Jet has made friends with neighborhood children, including Sydney, Mindy, and Sean, whose parents work at the nearby Deep Space Array. The Propulsions' car turns into a flying saucer, which they frequently use to take the older children into space. Their alien identities are known to Sean, Mindy, and Sydney, but they otherwise make some effort to conceal their origin.

At the end of each episode, scientist Amy Mainzer (also called Astronomer Amy) hosts educational interstitial segments: the segments are not included in the export version.


SeasonEpisodesOriginally aired
First airedLast aired
140February 15, 2016 (2016-02-15)February 6, 2018 (2018-02-06)
224April 2, 2018 (2018-04-02)May 6, 2019 (2019-05-06)
Films2August 14, 2017 (2017-08-14)June 17, 2019 (2019-06-17)




  • Jet Propulsion[6] (voiced by Ashleigh Ball)[7] is the title character of the show and is a humanoid alien. He has red hair and can stretch his body, as his parents can. He is excitable, energetic, and goofy. He is tall for his age. Jet is 63 years old in Bortronian years, as revealed in "Earthday Birthday". He was instantly popular with the other children the moment he arrived on Earth. He sees the mundane world as a vast and exciting place and even thinks that words are exciting, such as "surprise", claiming it to be a funny Earth word. He is named after the Jet Propulsion Laboratory.[8] He is shown to be extremely kind, even to people who are mean to him, such as Mitchell.
  • Sunspot[9] Propulsion[10] is the Propulsion family pet. He is described as a dog or cat to "Earthies" not in the know. Sunspot has the ears of a rabbit, the body of a kangaroo, and the tail of a raccoon or a fox. He plays concertina, electric guitar, bugle, pan pipes, and drums. Sunspot is silly and likes to play. His status as a mere "pet" may be somewhat of a put-on: He knows how to read, can talk and sing,[11] and can follow conversations, but often seems confused about what behaviors are expected from a pet. He often functions as a deus ex machina, figuring out what is going on and what needs to be done and then conveying that information to one or more of the children. Carrot and Jet both realize there's more to Sunspot than the obvious, as evidenced by a conversation in "The Greatest Canyon": Carrot: "You ever get the idea there's something he's not telling us?" Jet: "All the time, Dad. All the time." In "Back to Bortron 7", a large Sunspot-like character is shown to be Carrot and Celery's boss, meaning the species is equal among the Bortronians.
  • Carrot[12] Propulsion (voiced by Kyle Rideout)[7] is Jet's father named after the food carrot. His name from his home planet includes the sound of an elephant trumpeting and a parrot squawking. He tends to be goofy, like Jet. He often stays home while Celery takes the children on adventures into outer space, as he doesn't really like going in the flying saucer. Carrot often cooks wacky dishes such as deep-fried lollipops.
  • Celery[13] Propulsion (voiced by Meg Roe)[7] is Jet's mother named after the food celery. Celery is smart and often takes the children to space. Her name from her home planet includes the sounds of banging, buzzing, and clanging. She normally drives the family vehicle, as Carrot's driving makes her nervous. She likes racing against her brother, Zucchini.
  • Face 9000 (voiced by Brian Drummond)[7] is a computer. He is a cyan face with blue facial features projected from a small, round ball. He has a younger brother, Face 9001. Face 9000 knows everything about science, and often pops up to answer the children's science questions. In "Face on the Fritz", he gets an upgrade. He has a tendency to get jealous easily.


Collective name for Earth natives used by the Bortronians.

  • Sydney[14] Skelley[citation needed] (voiced by Dalila Bela (season 1), Vienna Leacock (in Back to Bortron 7-season 2))[7] is a girl with black hair and green eyes. She idolizes a character named Commander Cressida, named after the moon of Uranus, who has a dog named Sirius, named after the brightest star in Earth's night sky. Sydney is imaginative and very friendly, often acting as the voice of reason for the kids. In "How Come the Moon Changes Shape?" she danced with Jet, in "Kid Kart Derby" she hugged him. Her mother is Dr. Amy Skelley.[15] Sydney's motto is "A kid's place is exploring space." Her friendship with the Propulsion family gives her many opportunities to do just that, which makes her a happy girl. She is named after Sydney, Australia.
  • Sean[16] Rafferty[10] (voiced by William Ainscough (seasons 1-Our Sun is a Star!), Grady Ainscough (in You Can Call Me Albedo-Moon Face), Glen Gordon (in Lone Star 2 - Rocket Kids!-Sean Has a Cold)[7] is a boy with light brown hair, gray eyes, and freckles. Sean probably has asthma; he is shown breathing into a brown paper bag in "Jet Cooks Dinner", and he mentions once when the children are in space that sometimes he has trouble breathing. He is smart and wants to be an astronaut when he grows up, but he has slight claustrophobia. Sean likes to follow the Scientific Method, as shown in many episodes; he even has his own song about it. His mother is Dr. Rafferty. Sean idolizes Neil Armstrong, and has his action figure, which he takes along on their space trips.
  • Mindy[17] Melendez[18] (voiced by Jaeda Lily Miller)[7] is a 5-year-old girl (she was previously four, but turned five in episode "Mindy Turns Five") with brown eyes, dark brown hair in two pigtails, and a hat that looks like a teddy-bear face. In season 1, she stayed on Earth when the others went into outer space; she was not allowed to go any further than Jet's backyard. In season 2 she became allowed to travel past Jet's backyard, as she turned five, so she now accompanies the others as they travel into space. She is the only one who knows Mitchell is spying on Jet and is out to expose him.



  • Zucchini (voiced by Ian James Corlett) is Jet's maternal uncle and Celery's brother named after the food zucchini. He is a garbage collector on Bortron and works for the East Galaxy Garbage Company, Bortron 7 Division, using the Big Bortronian Junk Sucker (BBJS).[19] He is very kind to the kids, but also dimwitted at times.
  • Moonbeam is the pet of Uncle Zucchini. She looks similar to Sunspot, but Moonbeam is blue and plays electric guitar (left-handed).
  • Eggplant (voiced by Tabitha St. Germain) is Jet's aunt, Zucchini's wife, and Zerk's mom. She is an intergalactic travel writer just like Carrot and Celery.
  • Zerk (voiced by Meg Roe) is Jet's cousin.[20] He calls Jet to ask when the first Earthie visited Bortron. He visits Earth in "Zerk Visits Earth." Zerk is very energetic and hyperactive. In "Whole Lotta Shakin'" and "Asteroid Belt Space Race", he is shown to be very competitive.
  • Spinach is Celery's cousin.[21] Celery calls him when the van/flying saucer is not working and she needs advice.


  • Mitchell Peterson (voiced by Spencer Drever (season 1), David Raynolds (season 2), Dylan Schombing (One Small Step)) looks similar to Sean except that he wears glasses and a hat. Along with Mindy, he is younger than Jet, Sean, and Sydney. For his age, he appears to be smarter than Mindy, even knowing about and building an exact replica of the Saturn V rocket. Mitchell has a tendency to be sarcastic and sometimes blunt. He always wants to expose Jet's alien identity but inevitably fails. Nonetheless, Jet is nice to him. A running gag in the series is whenever he is spying on Jet, Mindy sneaks up on him which he finds annoying. In "Holidays in Boxwood Terrace" it is revealed that he only pretends to be mean and he is really shy and wants to be friends with Jet, Sean, Sydney, and Mindy, but he doesn't know how to do it. In the end, the kids welcome him into their group. His grandfather was a farmer, which he mentions in "Eye in the Sky."
  • Mr. Peterson is Mitchell's dad (voiced by Ian James Corlett) and addresses other people by their last names, calling Mitchell "Peterson" and using "Propulsion" to refer to Jet and Carrot. In the episode "Mindy's Weather Report" he calls himself the self-appointed safety officer for the neighborhood. He, like his son, can be a bit full of himself. He is an expert at playing mini-golf.[22] He is also a big soccer fan.[23]
  • Dr. Rafferty (voiced by Keegan Connor Tracy) is Sean's scientist mother. She and her co-worker Berg appear in "Visit to Mom's Office." She helps Mindy identify a meteorite in "Mindy's Meteorite Stand." Dr. Rafferty is patient, smart, and loving. In "Visit to Mom's Office", she mentions that she felt like an alien when she was a child.
  • Dr. Berg[24] (voiced by Brian Drummond) is a man who works with Dr. Rafferty. They later appear as judges for the baking competition. Dr. Berg can be rather silly at times. He loves drinking coffee and always has it in his hand. Sunspot always steals his watch.
  • Dr. Melendez[25] (voiced by Meg Roe) is Mindy's mother. She is heard calling to Mindy in "More Than One Moon."
  • Riley is a kid in Sean, Sydney, and Mindy's school. He brought in his favorite snow globe for show and tell.[26] He is not shown.
  • Lillian (voiced by Amelia Shoichet Stoll) is a friend of Mindy's. The two girls dig a small "Grand Canyon" in a sandbox while the Propulsions and the other children visit Valles Marineris on Mars.[27] Lillian is a girly girl but isn't the sharpest tool in the shed. She can be quite forgetful, seeing as how she told Mindy what her "surprise" present was.
  • Lillian's mom (voiced by Ashleigh Ball) is heard in "Mindy Turns 5", when she calls Lillian because she has to go to class.
  • Beep[28][29] is a robot who lives at the Deep Space Array (DSA). She has a twin sister, Boop, who is a Rover on Mars.
  • Dr. Skelley (voiced by Brenda Crichlow) is Sydney's mom, who also works at the DSA. Like her daughter, she is also a fan of Commander Cressida. She is a robotics engineer.


The idea for the show dates back to the late 1990s when Linda Simensky complained to Bartlett about how "nobody makes shows about two friends anymore."[5] From that idea, Bartlett came up with Lenny and Nate, a buddy comedy starring two eighth-graders, one of whom believes he is an alien.[30] Years later, while working on Dinosaur Train, Bartlett revamped the idea to be educationally appropriate for PBS, with a specific focus on space and earth science, after he worked on a project for NASA called the Shuttle Launch Experience.[31] Lenny became Jet and Nate became Sean, while both characters were aged down from 13 to 10.[32] The character of Sydney was added, and after testing the initial pilot of children, Mindy was added to appeal to a younger audience. The pilot was titled Jet Propulsion.

During production of the first season, PBS approved of everything that Bartlett and his team came up with, leaving no notes. However, during the second season, the team was approached by the Ready-to-Learn Act, thus bringing a new layer of oversight and executive meddling that made season 2 of the series "hard."[33]


Ready Jet Go! has many songs; some have no lyrics.

  1. Ready Jet Go! Theme Song[34]
  2. Commander Cressida Theme[35]
  3. How Come The Moon Has Craters?[36]
  4. Night of a Bazillion Stars[37]
  5. The Scientific Method Song[38]
  6. The Solar System Song[39]
  7. Venus! (Earth's Broiling Hot Twin)[40]
  8. Tiny Blue Dot[40]
  9. Intergalactic Travel Writers[40]
  10. The Milky Way
  11. What Goes Up (Must Come Down) aka The Gravity Song
  12. Enceladus vs. Europa aka Which Moon Is Best?
  13. Computers[41] aka The Programming Ditty
  14. Let's Fly Our Little Saucer to the Moon
  15. The 3-Part Bortronian Meal aka Classic 3-Part Bortronian Meal
  16. My Name is Mindy
  17. Try Again
  18. Beep's a Rovin' Superstar aka Jet's Beep Song
  19. Cooking with Jet (no lyrics)
  20. Asteroid Belt (no lyrics)
  21. Building Boogie (no lyrics)
  22. So Many Moons aka 67 Moons
  23. Real Bortronian Deal
  24. Bortronian Is What I Am!
  25. My Name is Jet
  26. Lone Star!
  27. I'm Not Afraid of Big Ideas
  28. A Scientific Town
  29. Is Your Planet Like My Planet?
  30. Take-off Ditty
  31. There's No Planet Like My Planet
  32. The Bortron Solar System Song
  33. That's How We Roll on Bortron 7
  34. Just Add Water
  35. It's a Neptune Kind of Day!
  36. Earthday Birthday
  37. You're Never Too Big for a Lullaby
  38. Dear Santa, From Little Billy
  39. Mindy's Toy-Building Ditty
  40. Solar System Saucer-Sleigh
  41. The Spirit of Christmas
  42. Dear Little Frozen Pluto
  43. A Star is Born!
  44. I'm Finally Five!
  45. The Outer Planets Song
  46. Ice Skating in July
  47. Heliocentric Ditty
  48. Total Eclipse of the Sun
  49. Space Racin'
  50. Grow Plant, Grow!
  51. Engineering Song
  52. Potatoes on Mars
  53. Get Growin'
  54. Potato Changes
  55. Every Day is Earth Day
  56. The Super Saucer Song



The series has gained 34.3 million viewers, according to PBS, including 10.2 million on broadcast television. It outperformed channel average by 32% in its first three weeks. The series has also been streamed over 146 million times on the PBS Kids website and app since January 2016.[42]

Critical reception[edit]

Emily Ashby of Common Sense Media rated it a 5/5, saying "Thoroughly engaging and packed with educational content, this exceptional series is a fun way for kids to learn about science and astronomy. Jet's excitement for the human experience is matched only by Sean and Sydney's eagerness to learn all about outer space; put the three of them together, and it's a true celebration of the joy of discovery. Whether it's executing a rescue mission for a Mars rover or combining daily chores with experiments in force, Jet and his friends have a lot to teach kids through their own experiences."[43]

Gina Catanzarite of Parent's Choice said "Although the vocabulary and science explanations may be beyond the scope of the youngest viewers, the premise, characters, interesting art direction and upbeat action should hold their attention. Older kids are more likely to grasp the facts and even if they don't remember them all, Ready Jet Go! will at the very least inspire curiosity, and plenty of questions when they take the time to gaze up at the skies above them."[44]

Awards and nominations[edit]

  • The series was awarded a Parents' Choice Silver Honor.[44]
  • The series was awarded a Common Sense Seal by Common Sense Media.[45]
  • Jaeda Lily Miller was nominated for a Young Artist Award for her performance as Mindy[46]
  • Cynopsis Kids Imagination Awards:
    • 2017: Nominated for Best Use of Music in a Kids Series, Educational Series/Special – STEM, Mobile App – Preschool, Preschool Series, and won Song for a TV Series/Special/Movie, tied with Splash and Bubbles.[47]
    • 2018: Won Best Use of Music in a Kids' Series, tied with Wonderama, Online Game tied with The Loud House: Lights Out, and was nominated for Preschool Series or Special.[48]
  • Back to Bortron 7 was nominated for an Environmental Media Award for Children's Television.[49]


PBS Kids and Two Moos created ten online games based on the show:

  1. Sydney's Astro-Tracker[50]
  2. Mindy's Constellation Exploration[51]
  3. Sean's Rescue Quest[52]
  4. Jet's Planet Pinball
  5. Jet's Rocket Ship Creator
  6. Mission Earth
  7. Mindy's Moonball
  8. Jet's Bot Builder
  9. Rover Maker[53]
  10. Cooking School[54]

Also on iTunes:

  1. Space Explorer[55] released 7 April 2016


Due to the national success of Ready Jet Go!, the series has been distributed to countries around the world and dubbed into over 20 different languages, enabling it to become internationally successful as well.

In September 2016, the series premiered in Canada on Knowledge Network during the Knowledge Kids block. It also has aired on BBC Kids[56] there. In November of that same year, the series premiered in South Korea on EBS1.[57] The Korean dub of the show was the first foreign-language dub to be produced and aired.

On January 25, 2017, the series premiered in Israel on Educational 23,[58] and later on Kan Educational until November 14, 2020. On February 24 of that same year, the series premiered on Yle TV2 in Finland as part of Pikku Kakkonen, under the title Jetron matkaan.[59] Latin American Spanish and Brazilian Portuguese dubs later premiered on Nat Geo Kids that same year, with the Spanish dub premiering on July 1 and the Portuguese dub on September 20.

In January 2017, the series premiered on LTV1 in Latvia. The show is broadcast in English with one man translating all the characters’ lines to Latvian in the form of a voiceover. On April 13, 2019, the second season premiered.[60]

Beginning February 17, 2021, the series began broadcasting on television in Russia.[61] That same year, the series premiered June 28 on TV Derana in Sri Lanka with a Sinhala dub, and September 27 on Aqlvoy in Uzbekistan under the title Diqqat Jet Olg’a!


In 2021, two years after the show's final episode aired, Bartlett confirmed that new songs were being recorded for the series.[62] A year later, he confirmed on The Arun Mehta Show podcast that the songs were for an 80-minute Ready Jet Go! movie in production for Universal Pictures. The film is in animation as of October 2022, and will go into post-production in spring 2023.[63]


  1. ^ "Preschool Series News and Galore".
  2. ^ "Ready Jet Go! - PBS KIDS". Retrieved 2016-06-11.
  3. ^ Perlmutter, David (2018). The Encyclopedia of American Animated Television Shows. Rowman & Littlefield. p. 491. ISBN 978-1538103739.
  4. ^ "READY JET GO! Season Two Blasts Off April 2 on PBS With Girl-Empowering Episodes". Retrieved 12 February 2019.
  5. ^ a b "Seattle native returns to the small screen with 'Ready Jet Go!' on PBS". The Seattle Times. February 15, 2016.
  6. ^ "Jet Propulsion" (PDF). Archived from the original (PDF) on 2017-09-06. Retrieved 2016-06-11.
  7. ^ a b c d e f g "Ready Jet Go! - Credits". Archived from the original on 2017-07-30. Retrieved 2019-10-28.
  8. ^ "Ready Jet Go! - PBS KIDS". Retrieved 12 February 2019.
  9. ^ "Sunspot" (PDF). Archived from the original (PDF) on 2017-09-06. Retrieved 2016-06-11.
  10. ^ a b "Eye in the Sky". Ready Jet Go!. Space Scout Sean Rafferty reporting for duty .. I'm here to pick up Sunspot Propulsion for his first official Space Scout event.
  11. ^ "Sunspot Talking". YouTube. Retrieved 2016-09-01.
  12. ^ "Carrot" (PDF). Archived from the original (PDF) on 2017-11-09. Retrieved 2016-06-11.
  13. ^ "Celery" (PDF). Archived from the original (PDF) on 2017-09-06. Retrieved 2016-06-11.
  14. ^ "Sydney" (PDF). Retrieved 2016-06-11.
  15. ^ "Ready, Jet, Go! - A Hammer And A Feather/ Commander Mum : ABC iview". 27 August 2017. Archived from the original on 27 August 2017. Retrieved 12 February 2019.
  16. ^ "Sean" (PDF). Retrieved 2016-06-11.
  17. ^ "Mindy" (PDF). Retrieved 2016-06-11.
  18. ^ Ready Jet Go!. I'm Mindy Melendez, hey let's be friend-ez
  19. ^ "Space Junk". Ready Jet Go.
  20. ^ "Earth Mission to the Moon". Ready Jet Go.
  21. ^ "Sunspot and the Great Red Spot". Ready Jet Go.
  22. ^ "Mindy's Weather Report". Ready Jet Go.
  23. ^ "What's a Satellite?". Ready Jet Go.
  24. ^ "Project Pluto". Ready Jet Go!.
  25. ^ "Jet's First Halloween Part 2". Ready Jet Go!.
  26. ^ "Project Pluto". Ready Jet Go.
  27. ^ "The Grandest Canyon". Ready Jet Go.
  28. ^ "Beep" (PDF). Retrieved 2016-06-11.
  29. ^ "Make Your Own Beep Space Rover" (PDF). Retrieved 2016-06-11.
  30. ^ CMA Live: Craig Bartlett [PART 1]. May 9, 2018. Event occurs at 21:22. Retrieved December 19, 2022 – via YouTube.
  31. ^ Craig Bartlett Offers Kids a Front Row Seat to the New Space Race, archived from the original on 2020-08-12, retrieved 2022-12-19
  32. ^ Jet Propulsion, archived from the original on 2013-01-15, retrieved 2022-12-19
  33. ^ Cirimele, Anna (2018-05-04). Elements of an Educational Television Series: Analyzing Successful Television Show Curriculum and Formatting (Thesis). California State University. Retrieved 2023-01-05.
  34. ^ "Ready Jet Go! Song" (PDF). Retrieved 2022-12-22.
  35. ^ "Commander Cressida Theme" (PDF). Retrieved 2022-12-22.
  36. ^ "How Come the Moon Has Craters" (PDF). Retrieved 2022-12-22.
  37. ^ "Night of a Bazillion Stars" (PDF). Retrieved 2022-12-22.
  38. ^ "The Scientific Method Song" (PDF). Retrieved 2022-12-22.
  39. ^ "The Solar System Song" (PDF). Retrieved 2022-12-22.
  40. ^ a b c "Tiny Blue Dot". Ready Jet Go.
  41. ^ "Face on the Fritz". Ready Jet Go.
  42. ^ "Ready Jet Go!". Cake Entertainment.
  43. ^ "Ready Jet Go! - TV Review". 2016-02-15. Retrieved 2023-01-05.
  44. ^ a b Catanzarite, Gina (2017). "Ready Jet Go! - Spring 2017 Television". Archived from the original on February 5, 2017.
  45. ^ "TV Reviews - Kids TV - Common Sense Media". Retrieved 12 February 2019.
  46. ^ "2017 Nominations". Archived from the original on January 30, 2017.
  47. ^ "2017 Cynopsis Kids !magination Awards - Results". 2017-09-16. Retrieved 2023-01-05.
  48. ^ "2018 Cynopsis Kids Imagination Awards - Cynopsis Media". 2018-09-25. Retrieved 2023-01-05.
  49. ^ "EMA Awards 2018 -- Environmental Media Association". 2018-05-22. Retrieved 2023-01-05.
  50. ^ "Ready Jet Go! . Games . Sydney's Astro Tracker - PBS KIDS". Retrieved 2016-06-11.
  51. ^ "Ready Jet Go! . Games . Mindy's Constellation Exploration - PBS KIDS". Retrieved 2016-06-11.
  52. ^ "Ready Jet Go! . Games . Sean's Rescue Quest - PBS KIDS". Retrieved 2016-06-11.
  53. ^ "Ready Jet Go! . Games . Rover Maker - PBS KIDS".
  54. ^ "Ready Jet Go!. Games. Cooking School - PBS KIDS".
  55. ^ "Ready Jet Go! Space Explorer on the App Store". Retrieved 2016-06-11.
  56. ^ "CAKE goes global with Ready Jet Go!".
  57. ^ "우주탐험가 젯 (우주탐험가 젯)".
  58. ^ Archived at Ghostarchive and the Wayback Machine: "היכון הכן טוס". YouTube.
  59. ^ "Lähde Jetron matkaan Pikku Kakkosessa!".
  60. ^ "TV PIRMIZRĀDE! Animācijas seriāls. "Uzmanību, gatavību, kosmosā! 2" 1. Sērija". 13 April 2019.
  61. ^ ""На старт, внимание, взлёт!". Премьера!".
  62. ^ "Craig Bartlett on Instagram: "I get to record Jet songs this week with my old pals @ashperson and @jimlangmusic! Excelsior!!"".
  63. ^ 26th Hey Arnold! Anniversary Show with Craig Bartlett!. October 7, 2022. Event occurs at 40:44. Retrieved October 22, 2022 – via Apple Podcasts.

External links[edit]