Space

Space is where curiosity begins, but at Hubble Star, it’s where mastery takes flight. We have designed an advertisement-free, kid-friendly course that teaches space for kids smoothly from Pre-K to 12th grade. Whether your child is identifying the Moon for the first time or calculating orbital mechanics, we provide unlimited PDFs and fun games to make every lesson count. Not only that, but Hubble Star integrates the biggest question bank in the world along with artificial intelligence-driven revision, which zeroes in on a student’s particular weaknesses and leaves nothing to chance.

There’s also the live dashboard for parents for total visibility, as well as the ability to track your kid’s performance through their position on the global leaderboard. Feeling ready to explore? Here is how we map out the universe at every grade level!

Standards-Aligned Space Curriculum

Pre-K – 12th grade space is a subject that starts the moment a child points at the moon from a car window. Our curriculum follows that curiosity all the way from Pre-K to 12th grade: from first observations of the sky to the physics of black holes and the search for life beyond Earth. Every stage builds on the last, so by the time students finish, space for kids isn't just a collection of facts. It's a system they genuinely understand.

Early Childhood (Pre-K & Kindergarten)

Learning about space starts with a pointed finger and a question. Children are already looking up at the Moon on the way home, noticing stars they can't quite count. We start exactly there!

Sun, Moon, and the Night Sky

The three things children can already see, the Sun, the Moon, and stars, finally get names and simple, honest explanations. Nothing more than what this age needs, nothing less than what they deserve.

Day and Night

Why is it bright at breakfast and dark at bedtime? Earth spins once every 24 hours, and that's genuinely the whole explanation. Kids love it when a big question has a clean answer, which is what makes Hubble Star one of the best kids' learning apps out there!

Sky Observation

Before any concept is introduced, children are encouraged to simply look up: at dawn, at dusk, across seasons. The habit of paying attention is the first thing we teach, because it's the most important one.

Basic Idea of Earth and Space

Every child's earliest questions about the world get real answers here: what Earth is made of, what it gives us, and where it sits in a solar system full of things worth knowing about.

Elementary School (Grades 1–5)

At this age, kids already know something is up there. Now they want to know why. Space for kids stops being just something to look at and becomes something worth figuring out, and that shift is everything.

Sun as a Star

The Sun is something kids have known their whole lives. What changes here is the scale: they come to understand it not just as warmth and light, but as the closest star to Earth and the gravitational anchor of our entire solar system

Moon Phases (Basic)

The Moon isn't actually changing shape, and once kids understand why it looks like it is, they never quite see it the same way again. It all comes down to position, light, and perspective.

Earth's Rotation (Day and Night)

It's not the Sun moving across the sky; it's us spinning! That single shift in perspective is one of the earliest "aha" moments in the curriculum, and it tends to stick.

Planets (Introduction to the Solar System)

Eight planets, two very different types: students take their first real look at what each one is made of, why rocky and gaseous planets are so different, and what makes each world its own.

Solar System (Planets, Order, Characteristics)

The full picture starts coming together here — where each planet sits, what makes it distinct, and what gravity has to do with keeping all of it in place.

Earth's Rotation and Revolution

Two motions, two completely different effects. Kids learn to tell them apart, and one very common misconception about why we have seasons gets cleared up once and for all.

Moon Phases and Eclipses

Once the basics of moon phases click, the next question is natural: what causes an eclipse? Kids find out why they happen, what makes solar and lunar eclipses different, and why the sky doesn't go dark every single month.

Gravity Basics

It can't be seen or touched, but gravity is holding everything together. Kids get their first real introduction to what it is, what it does, and why the solar system would fall apart without it.

Stars and Constellations

The shapes in the night sky have names and stories, but here's the surprising part: most of those stars aren't close to each other at all. That revelation tends to make the universe feel a lot bigger.

Introduction to Space Exploration

From the first rockets to astronauts living and working in orbit, kids get a front-row seat to one of the greatest adventures in human history - and learn that it's still very much ongoing.

Middle School (Grades 6–8)

Middle school is where scattered facts start becoming a system. Space follows rules, consistent, measurable, predictable rules, and students at this level are ready to see how they all connect.

Structure of the Solar System

The eight planets are just the beginning. The asteroid belt, the Kuiper Belt, dwarf planets, comets, meteoroids: the solar system turns out to be far more crowded and interesting than most kids expect.

Gravity and Orbital Motion

Gravity gets a proper treatment here, not just as a force that pulls things down, but as the relationship between mass and distance that determines every single orbit in the solar system.

Phases of the Moon and Eclipses (Detailed

 This goes deeper than phase names: into the actual geometry of shadows, the timing of each phase, and the remarkable fact that the Moon's pull is responsible for two high tides on Earth every single day.

Asteroids, Comets, and Meteors

These aren't just random rocks in space. Each one has an origin, a composition, and a story — and understanding the differences between them turns out to matter quite a bit.

Stars: Life Cycle and Classification

A star's mass determines everything about how it lives and how it dies. Students follow the full journey: from nebula to main sequence, through giant phases, all the way to white dwarfs, neutron stars, and black holes, with the H-R diagram as their map.

Galaxies and the Universe

The Milky Way, as vast as it feels, is just one galaxy among billions. Students zoom out to explore its structure, then keep zooming, until the true scale of the universe starts to sink in.

Space Exploration Missions and Satellites

From the satellites orbiting overhead right now to the space stations where humans live and work, kids connect everything they've learned to the missions and technology that made it all possible.

High School (Grades 9–12)

Now, the questions evolve from "what is happening" to "how do we know", through physics, measurement, and evidence:

Kepler's Laws and Planetary Motion

Our curriculum covers the full mathematical story behind planetary orbits: Kepler's laws, the law of universal gravitation, and elliptical orbits that explain exactly where every planet in our solar system comes from.

Gravity and Astrophysics Basics

Gravity gets treated with serious rigor here: kids build a real understanding of gravitational physics and the mechanics that govern how every object in the universe moves and interacts.

Stellar Evolution (Nebula, Main Sequence, Supernova, Black Holes)

From molecular cloud to protostar to supernova and beyond, our lessons walk students through every transformation in a star's life, grounding each stage in the physics and mass considerations that drive it.

Galaxies and Cosmology (Big Bang Theory)

We take kids to the biggest picture of all, covering the Big Bang, the expansion of the universe, dark matter, and dark energy, all built from real observational evidence like redshift data and cosmic background radiation.

Light, Spectra, and Telescopes

Kids are introduced to spectroscopy, the electromagnetic spectrum, and the history of telescope building since Galileo, building the foundation for how humans have studied the universe across centuries.

Space Technology and Modern Exploration

We connect the physics of space to the tools humans have built to explore it,  covering how modern space technology works and the role it plays in expanding what we know.

Exoplanets and the Search for Life

From transit photometry to radial velocity, our approach teaches kids the real techniques used to detect planets beyond our solar system,  and the profound question those discoveries invite us to ask about life in the universe.

Every great astronomer started by looking up at the sky. So, give your child the curriculum that takes them from here to there! Sign up with Hubble Star for free today!

FAQs

Q1: Is space science too complicated for pre-K children?

No way! They begin with something they know: the Sun, the Moon, and stars,  before anything else.

Q2: How closely does your space content follow school lessons?

We include the basics from school—planets, stars, and the solar system—and then extend into rockets, missions, and future careers in space. Children move from simple facts to imagining how they might be part of space exploration.

Q3: What space adventures can I share with my friends here?

You and your friends can join space missions where you answer questions, unlock planets, and race to finish objectives. It turns learning about space into a collaborative quest with just the right amount of friendly rivalry.

Q4: Do you align your curriculum with the current educational system teaching space for kids?

Yes! Your child will receive knowledge that complements his/her studies at school, and nothing less!

Q5: What is the H-R diagram in space for kids, and when will it come up in my child's education?

It's a chart where stars are classified depending on their temperatures and luminosity. It pops up in middle school when learning about stellar evolution and the life cycles of stars.

Q6: Are planets discovered using methods other than seeing them, and how?

Yes. Scientists discover them by measuring small variations in the apparent magnitude of a star due to the passing of a planet across its surface. This is how planets are discovered.

Q7: Can teenagers truly be taught dark matter in space for kids?

Indeed, they can, but we do not just mention this term. Our experts teach what dark matter is and explain the evidence of its existence.