George is helping Luna, Jupiter, and Clyde pick oranges in the orchard. Jupiter wants to try a green orange that hasn’t quite ripened yet and is surprised by how sour it is. It gets them all wondering, why is fruit sweet?

When the trio see Grandpa and Galileo using pulleys and levers to do some really heavy work, it gets them wondering how they work. They transform into super-heroes and discover the mighty power of these tools in the Lever and Pulley League.

While playing with some stamps in Grandpa’s shop, Jupiter stumbles upon a fish fossil. But what exactly is a fossil? Searching for answers, the trio tries to make their very own fossils in mud.

On a picnic down by the lake, Luna, Jupiter and Clyde see some ducks swimming. When they take a closer look they realize the ducks aren’t wet. How can a duck swim and not get wet? It’s time for another amazing investigation to discover the duck’s secret.

While picking vegetables in the garden, Jupiter wonders why he doesn’t have green eyes. After a little investigating, Luna comes up with the best make believe ever where they encounter their parents, grandparents, great-grandparents, and more!

Luna learns all about how waves form, why volcanos erupt, how nomadic people survive deserts, the concept of heat, and how altitude affects us.

Luna’s family is doing research in Teotihuacán, when they begin to wonder, how exactly was this city built? She’s just gotta know!!

Luna learns all about outer space, what color polar bears actually are, giant water lilies, why brushing your teeth is so important, and cameras.

Luna learns all about green coconuts, solar energy and chemical energy, keystones, the earth's orbit, stalactites and stalagmites, and fruit.

Luna and her family are in Hawaii. Everyone’s excited to learn how to surf, which gets Luna wondering… How do waves form? Where do they come from? She’s just gotta know!

When the trio go to top of Mount Vesuvius to explore, they are surprised to see steam rising up from the volcano’s crater and discover that it’s a volcano that is expected to erupt again. What exactly is a volcano and why do they erupt?

Luna’s family is traveling in the desert. Noticing how often sand storms seem to change their surroundings, she starts to wonder… How do people find their way in the desert when the points of reference are always changing?

Luna, Jupiter and Clyde are in the desert with their friend Gamali. When night falls, they are surprised by how quickly the temperature drops. Luna just has to know... Why does it get so hot during the day in the desert and so cold at night?

When Luna's family discovers Pink Lakes on a Caribbean Island full of pink flamingos, it gets them wondering... Why are flamingos pink? What's happening here?

Luna, Jupiter and Clyde are so excited to see a blue whale for the very first time. They are amazed by the size of the animal and begin to wonder, how did the whale get to be so big?

Going through some of Dad's photos for work, the trio gets to wondering, how do cameras work exactly? They decide it's time for a scientific investigation to find out exactly what's happening here.

After seeing different plant species in the Amazon - Luna, Jupiter, and Clyde wonder: what do plants eat? They dive into a scientific investigation to discover what's happening here.

Luna's family is exploring some ancient ruins in Israel when they notice something very interesting, two stone arches that have somehow stayed in one piece over thousands of years. It gets them wondering, how do the rocks in the arch stay together like that?

It's Jupiter's birthday! His indigenous friends tell him his birthday happens to be right during the "enchente de Jararaca". Luna, Jupiter, and Clyde are confused, seems that their friends count time a bit differently. What is a year exactly?

Luna's family is visiting an amazing cenote in Mexico, swimming in the beautiful waters and exploring the trails. When Luna spots some especially spectacular stalactites, she gets to wondering, what exactly are stalactites? What's happening here?

Luna, Jupiter, and Clyde are visiting a watermelon plantation in Africa with their parents. They’re very excited to see what watermelon trees look like, but to their surprises they find the watermelons on the ground and no trees in sight!

When they see a frog hop right onto a lily pad Luna, Jupiter, and Clyde notice how very strong the leaf is, but... how can it hold a frog? What's happening here? They've just gotta know!

Luna's family is visiting a small polar bear research center in Arctic Russia. Jupiter spots a polar bear, but it disappears into the snowy area before the others have a chance to see it. This gets Luna wondering, why are polar bears white?

During a trip in the Caribbean, Luna, Jupiter, and Clyde notice that some islands seem to float. Some of them are so small it really seems possible that they might actually float. Could that be so?