They live at Boxwood Terrace in Washington state, [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.

However, a boy named Mitchell Peterson who lives next door is in on Jet's alien behavior and wants to expose his identity.

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.

[48] 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!

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.

"[49] 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.

[51] In 2021, two years after the show's final episode aired, Bartlett confirmed that new songs were being recorded for the series.

[62] The plot of the movie revolves around Jet and the rest of Team Propulsion heading to Space Camp.

[63][64] PBS Kids and Two Moos created ten online games based on the show: Also on iTunes: