What's Up with Saturn's Rings? - Celery takes Jet, Sydney, and Sean on a trip to explore Saturn's rings to learn what they're made of. Curriculum: Saturn has more than 12 rings that are made of mostly ice. The ice pieces range from microscopic to very large chunks. The rings appear to be revolving with Saturn at the same speed but it's thought that the individual rings revolve at different speeds.Sunspot's Night Out - When Sunspot goes missing in the neighborhood, Sydney, Sean, and Jet use the North Star to navigate their way to where he is. Curriculum: The North Star is often used for navigation due to its constant position in our sky. It isn't the brightest star, but unlike the other stars, it seems to remain at a fixed location in the sky.

What's Up with Saturn's Rings? - Celery takes Jet, Sydney, and Sean on a trip to explore Saturn's rings to learn what they're made of. Curriculum: Saturn has more than 12 rings that are made of mostly ice. The ice pieces range from microscopic to very large chunks. The rings appear to be revolving with Saturn at the same speed but it's thought that the individual rings revolve at different speeds.Sunspot's Night Out - When Sunspot goes missing in the neighborhood, Sydney, Sean, and Jet use the North Star to navigate their way to where he is. Curriculum: The North Star is often used for navigation due to its constant position in our sky. It isn't the brightest star, but unlike the other stars, it seems to remain at a fixed location in the sky.

"A Kid's Guide to Mars" - Celery and Carrot need to update their guidebook about Mars, and the kids join them on a trip to see how much things have changed on Mars in the last four billion years. Curriculum: Mars was once (4 billion years ago) a lot like Earth, with oceans, clouds and drinkable water. Something happened 3.7 billion years ago that turned Mars' atmosphere from warm and wet to dry and cold."Jet 2" - Jet builds a robot version of himself, so that he can be in "two places at once!" But Jet learns what jealousy is when the other kids seem to be having more fun with Jet 2 than they are with him! Curriculum: A robot is an automatic mechanical device often resembling a human or animal. Humans build robots to perform the tasks humans can't do, but people are still in control because they give instructions to the robots.

"More than One Moon" - Mindy is shocked to learn that there is more than one moon in the solar system. Celery flies the kids out to Mars so they can see what its two moons look like compared to ours. Curriculum: There is more than one moon in the Universe; in fact, there are hundreds of moons in our own Solar System. Mars has 2 moons, Phobos and Deimos, which are unusual in that they are not round like our moon, but oddly shaped, like battered potatoes."Visit to Mom's Office" - Sean and Sydney take Jet to meet Sean's mom, a scientist, at the Deep Space Array. She explains that they're looking for stars with their own systems of exoplanets to detect if there might be any that contain life. But will taking Jet out in public expose his secret identity? Curriculum: An exoplanet is a planet that doesn't orbit the Earth's sun, but instead orbits a different star in the Universe.

"More than One Moon" - Mindy is shocked to learn that there is more than one moon in the solar system. Celery flies the kids out to Mars so they can see what its two moons look like compared to ours. Curriculum: There is more than one moon in the Universe; in fact, there are hundreds of moons in our own Solar System. Mars has 2 moons, Phobos and Deimos, which are unusual in that they are not round like our moon, but oddly shaped, like battered potatoes."Visit to Mom's Office" - Sean and Sydney take Jet to meet Sean's mom, a scientist, at the Deep Space Array. She explains that they're looking for stars with their own systems of exoplanets to detect if there might be any that contain life. But will taking Jet out in public expose his secret identity? Curriculum: An exoplanet is a planet that doesn't orbit the Earth's sun, but instead orbits a different star in the Universe.

Asteroids, Meteors, and Meteorites - Sean is determined to beat his mystery competitor at a video game of "Astro-Tracker." When Face 9000 tells the kids about the Asteroid Belt, Sean realizes that the best way to learn about asteroids is to see them for himself. Celery flies them out to space, and the kids learn the difference between an asteroid, a meteor, and a meteorite. Worried at first, Sean learns that only the rare asteroid (called a meteorite) makes it all the way to Earth, so he decides that he'll become really good at "Astro-Tracker" to prepare for the future when he can be on a team of scientists who track rogue asteroids. Curriculum: Asteroids are small solar system bodies that orbit the Sun. Asteroids are similar to comets but do not have a visible coma (fuzzy outline and tail) like comets do. A meteor is a small asteroid that burns up as it passes through the Earth's atmosphere. A meteorite is a piece of asteroid that survives falling through the Earth's atmosphere and collides with the Earth's surface.Mindy's Meteorite Stand - When Mindy and Sunspot are digging in the yard, they discover a unique rock that Mindy is convinced is a meteorite. The kids conduct a series of tests to find out and amazingly the rock passes each test. "Meteorite fever" grips the neighborhood, as Mindy sets up a stand so people can see her meteorite, and bring her rocks to assess. In the end, a DSA scientist confirms that Mindy's rock actually isn't a meteor... but, wait, the random rock Mindy's sitting on is! Curriculum: Meteorites are pieces of space rocks (asteroids) that break up when they hit the Earth's atmosphere and fall in small pieces. Meteorites are older than any rock from Earth, and share certain characteristics: density (high), attraction to a magnet, and rust.

Solar System Bake-off! - Mindy and Carrot are entering a cooking competition and are making desserts representing the different planets of the Solar System. But they hit a bump when they can't remember if Saturn is cold on the inside and hot on the outside... or the other way around. Jet, Sydney, and Sean fly with Celery out to Saturn to find out before the competition begins, so Mindy and Carrot can finish their entry in time! Curriculum: The planets in our solar system can be divided into two categories -- terrestrial (inner planets) and gas (outer planets). Saturn is a gas planet that seems to have a hot solid inner core of iron and rocky material surrounded by an outer core probably composed of ammonia, methane, and water.Kid-Kart Derby - Jet builds an electric engine from scratch for the annual soapbox derby competition, but Mitchell, determined to win the derby, is suspicious that Jet is using some alien technology. Curriculum: An ion drive engine is a very fuel-efficient engine for space vehicles. Ion beams are capable of propelling spacecraft at up to 10 times faster than ships propelled by chemical rockets.

Solar System Bake-off! - Mindy and Carrot are entering a cooking competition and are making desserts representing the different planets of the Solar System. But they hit a bump when they can't remember if Saturn is cold on the inside and hot on the outside... or the other way around. Jet, Sydney, and Sean fly with Celery out to Saturn to find out before the competition begins, so Mindy and Carrot can finish their entry in time! Curriculum: The planets in our solar system can be divided into two categories -- terrestrial (inner planets) and gas (outer planets). Saturn is a gas planet that seems to have a hot solid inner core of iron and rocky material surrounded by an outer core probably composed of ammonia, methane, and water.Kid-Kart Derby - Jet builds an electric engine from scratch for the annual soapbox derby competition, but Mitchell, determined to win the derby, is suspicious that Jet is using some alien technology. Curriculum: An ion drive engine is a very fuel-efficient engine for space vehicles. Ion beams are capable of propelling spacecraft at up to 10 times faster than ships propelled by chemical rockets.

Mindy Pet-sits Sunspot - Sean, Sydney, Jet, and Carrot head out to view the Northern Lights. Mindy, upset she can't go, gets a boost - Sunspot stays back and agrees to let her be his pet-sitter. As the group in the saucer searches for, yet can't find, the Northern Lights, Sunspot and Mindy work on a backyard project - making their own amazing backyard "Northern Lights" display! Curriculum: Northern lights (aka, aurora borealis) are a natural, awesome phenomenon. The origin of the aurora begins when a cloud of gas is ejected from the Sun's surface. When it collides in Earth's atmosphere with oxygen and nitrogen, it produces dazzling auroral light.Treehouse ISS - When the kids realize that they all want to use the treehouse at the same time for different activities, arguments break out. Mindy tries to help by creating a schedule for each kid to use the treehouse alone. In the end, the kids realize they need each other's company and ideas in order to be successful in their own projects. In resolving their problem, the kids learn to think like the scientists on the International Space Station, who have to find a solution to the problem of getting along while doing different projects in a small space. Curriculum: The International Space Station (ISS) program is a great global human achievement in international cooperation. Countries work in partnership to support the experiments of scientists on the ISS, including observing space, growing plants in micro-gravity, and recording observations.

Ice Moon Enceladus - Sean sets up a sno-cone stand to help raise money to send a spaceship to Mars. But it's the hottest day of the year and he quickly runs out of ice, and he can't find any nearby. Then Jet has an idea where they can go to get some ice-Saturn's ice moon, Enceladus! Curriculum: Enceladus is a small moon of Saturn that contains a liquid ocean underneath an outer layer of ice. It has "ice volcanoes" that shoot geyser-like jets of water vapor into space. Some of the water vapor falls back as "snow" and the rest escapes, which supplies most of the material making up Saturn's E ring.What Goes Up... - Jet builds a mini-flying saucer in his garage and wants to test it, but to succeed, he has to learn what gravity is and how it works. Curriculum: Gravity is an invisible pulling power that every object has-planets, moons, stars, and YOU. Gravity pulls all objects in the universe toward one another. The bigger and heavier an object is (the more mass it has), the more gravity it has.

Ice Moon Enceladus - Sean sets up a sno-cone stand to help raise money to send a spaceship to Mars. But it's the hottest day of the year and he quickly runs out of ice, and he can't find any nearby. Then Jet has an idea where they can go to get some ice-Saturn's ice moon, Enceladus! Curriculum: Enceladus is a small moon of Saturn that contains a liquid ocean underneath an outer layer of ice. It has "ice volcanoes" that shoot geyser-like jets of water vapor into space. Some of the water vapor falls back as "snow" and the rest escapes, which supplies most of the material making up Saturn's E ring.What Goes Up... - Jet builds a mini-flying saucer in his garage and wants to test it, but to succeed, he has to learn what gravity is and how it works. Curriculum: Gravity is an invisible pulling power that every object has-planets, moons, stars, and YOU. Gravity pulls all objects in the universe toward one another. The bigger and heavier an object is (the more mass it has), the more gravity it has.

Date Night - When Jet realizes that it's the anniversary of Carrot and Celery's first date, he wants to recreate that first picnic they had on one of Bortron 7's moons. The kids all get involved to help create the perfect date night. Curriculum: It's hard to have a picnic anywhere in the Solar System besides Earth - here we're not too near or too far from the Sun, so the temperature is just right, plus we have liquid oceans and a breathable atmosphre. Anywhere else, you'd definitely have a hard time enjoying a picnic outdoors.Face on the Fritz - When the kids are trying to build a new pet house for Sunspot and FACE 9000 gives them mixed-up directions, they learn that it is time for FACE 9000 to get upgraded. In the meantime FACE 9000's "substitute," the "DATA-BOX," is an old Earth computer from the early 1980s. The kids need to learn how to give instructions in the way computers understand, putting them in charge of using technology in an active way. When FACE 9000 comes back, they have learned to appreciate him, as well as to be more independent thinkers. Curriculum: Technology has advanced greatly since the days of the giant computers that guided man to the moon in 1969. However, even though technology is very useful, it is still a tool, not an end in itself, and people still need to know how to monitor and program it.

Comet Fever - The neighborhood is having a star gazing party when Mindy discovers what may be a new comet. While Celery takes Jet, Sean, and Sydney out to space to get a close-up look at the comet, Carrot and Mindy decide to surprise the others and make their very own comet in the backyard using ingredients from home! Curriculum: A comet is an icy body that releases gas or dust. Comets are often compared to dirty snowballs. Occasionally a comet streaks through the inner solar system, creating quite a show!Asteroid Patrol - When Sean learns that asteroids are floating around the solar system (potentially), he decides to set up a homemade asteroid watch-station in the treehouse, and gets all the other kids involved. Eventually, Sean's mother and her colleague at the DSA help Sean and the others understand how scientists monitor the skies for asteroids, a job that Sean doesn't need to do all by himself. Curriculum: Asteroids are mostly found in the Asteroid Belt. Occasionally an asteroid can break away from the gravity of the Asteroid Belt and intersect with the orbit of the Earth. When a small asteroid enters the Earth's atmosphere, it becomes a meteor and burns up.

Comet Fever - The neighborhood is having a star gazing party when Mindy discovers what may be a new comet. While Celery takes Jet, Sean, and Sydney out to space to get a close-up look at the comet, Carrot and Mindy decide to surprise the others and make their very own comet in the backyard using ingredients from home! Curriculum: A comet is an icy body that releases gas or dust. Comets are often compared to dirty snowballs. Occasionally a comet streaks through the inner solar system, creating quite a show!Asteroid Patrol - When Sean learns that asteroids are floating around the solar system (potentially), he decides to set up a homemade asteroid watch-station in the treehouse, and gets all the other kids involved. Eventually, Sean's mother and her colleague at the DSA help Sean and the others understand how scientists monitor the skies for asteroids, a job that Sean doesn't need to do all by himself. Curriculum: Asteroids are mostly found in the Asteroid Belt. Occasionally an asteroid can break away from the gravity of the Asteroid Belt and intersect with the orbit of the Earth. When a small asteroid enters the Earth's atmosphere, it becomes a meteor and burns up.

The kids are attempting to grow prize-winning pumpkins in the back yard. Jet gets carried away and uses his Bortronian Grow-Lamp to grow a huge pumpkin. Now they just have to get his enormous pumpkin downtown to win the contest!

Sydney, Sean, and Mindy help Jet experience his first Halloween. They come up with a list of classic Halloween to-dos, including carving Jack-o-lanterns, dressing up in costumes, and collecting candy. Celery takes the kids on a quick trip to space to see what causes a lunar eclipse. Meanwhile, Mitchell Petersen is on the case to figure out what exactly is going on with that strange Propulsion family... / Sydney, Sean, and Mindy take Jet trick-or-treating, and along the way, they learn about the Red Moon effect from some of the neighborhood scientists. Carrot and Celery turn their garage into a haunted house, which is an unexpected hit with the neighborhood. Jet and Sunspot even make Mindy's Halloween wish come true by flying across the Red Moon as a witch and her cat on a broom.

Sydney, Sean, and Mindy help Jet experience his first Halloween. They come up with a list of classic Halloween to-dos, including carving Jack-o-lanterns, dressing up in costumes, and collecting candy. Celery takes the kids on a quick trip to space to see what causes a lunar eclipse. Meanwhile, Mitchell Petersen is on the case to figure out what exactly is going on with that strange Propulsion family... / Sydney, Sean, and Mindy take Jet trick-or-treating, and along the way, they learn about the Red Moon effect from some of the neighborhood scientists. Carrot and Celery turn their garage into a haunted house, which is an unexpected hit with the neighborhood. Jet and Sunspot even make Mindy's Halloween wish come true by flying across the Red Moon as a witch and her cat on a broom.