Asteroid Coloring Pages

Free Asteroid Coloring Pages: 21 printable PDF designs featuring realistic rocky asteroids, cartoon and kid-friendly characters, sketch and doodle-style line art, and a simple beginner sheet. Each page can be downloaded as a PDF to print or colored online in the browser.

Asteroids are rocky leftovers from the early solar system, material that never clumped together to form a planet roughly 4.6 billion years ago. Most orbit the sun in the main asteroid belt, a wide band of space between Mars and Jupiter that holds well over a million asteroids larger than a kilometer across. Asteroids fall into three broad composition types: dark, carbon-rich C-type asteroids, which are the most common; stony S-type asteroids made of silicate rock and nickel-iron; and metallic M-type asteroids. The largest known asteroid, Ceres, measures roughly 940 kilometers across and is classified as a dwarf planet in its own right.

This collection groups its 21 pages by style, from true-to-life rocky asteroids to cartoon and kid-friendly characters, so kids and adults can pick a version that matches their skill level. Each page is available as a downloadable PDF or as an online coloring tool that works directly in the browser.

What Is Inside This Collection

The 21 pages are split into four groups based on style and complexity, ranging from detailed, realistic asteroids to simple cartoon shapes.

Realistic Asteroid Designs

The largest group shows irregularly shaped, cratered asteroids, some set against a starry space background. Use Gray or Tan as a base, then add darker Gray shading inside each crater, and if a starry background is shown, keep the sky a deep Black or Navy dotted with small White stars.

Cartoon and Kid-Friendly Asteroids

Five pages give the asteroid a face or a softer, rounder shape. Since a real asteroid has no built-in personality, this group leans into imagination, using pale Pink, Blue, or Yellow for the body along with simple Black facial features and a friendly expression.

Sketch and Doodle Style

Four pages use a looser, hand-drawn outline with an irregular, jagged silhouette instead of a clean, simple shape. Colored pencil or marker both work well here, and small doodled patterns like stars or simple shapes scattered across the surface in a contrasting bright color fit this playful style.

Simple Beginner Sheet

One page uses a large, bold asteroid outline with very few small details, making it a good starting point for toddlers and preschoolers. A single flat Gray or Tan fill is enough to complete this design well.

What Asteroid Coloring Pages Do

Fine motor development. Unlike a smooth, round planet, an asteroid has an irregular, jagged silhouette covered in small craters, and tracing that uneven shape cleanly takes a closer hand control than filling in a simple circle. The American Academy of Pediatrics identifies fine motor skill development as a core benefit of structured coloring for children ages 2 through 7, and an asteroid’s pitted, angular surface gives that practice a genuinely irregular challenge.

Leftover building blocks from the solar system. Asteroids are material that never came together to form a planet when the solar system formed roughly 4.6 billion years ago, and most still orbit in a wide belt between Mars and Jupiter today. That gives parents and teachers a natural opening to explain that not everything orbiting the sun is a planet, moon, or comet, since asteroids are their own distinct category of leftover space rock.

Anxiety reduction through focus. A 2005 study in the Art Therapy Journal documented measurable reductions in anxiety following structured coloring sessions. The repeated small crater shapes scattered across a realistic asteroid page offer exactly the kind of steady, low-stakes detail work that suits an unhurried coloring session.

A real reason to vary the color palette. Asteroids aren’t all one color in real life, ranging from dark, carbon-rich C-type asteroids to lighter, stony S-type ones and shiny, metallic M-type ones. That gives colorists a scientific reason to try dark grays, warm tans, and metallic silvers across different pages rather than defaulting to one shade of gray every time.

How to Color Asteroid Pages Well

• Rocky surface: Use Crayola Gray or Tan as a base, then add darker Gray shading inside each crater for depth.
• Metallic-type asteroids: Try Silver or a light Gray-Blue for pages meant to represent a metallic asteroid, giving it a slightly shinier look than the carbon-rich or stony types.
• Starry background scenes: Keep the sky a deep Black or Navy, then dot small White stars across it to set the asteroid against open space.
• Cartoon and kid-friendly characters: Move away from gray entirely if you like, using pale Pink, Blue, or Yellow for a friendlier, more imaginative asteroid, paired with simple Black facial features.
• Sketch and doodle style: Keep the base color muted, like Tan or Gray, then add small bright doodles, such as stars or simple patterns, scattered across the surface in a contrasting color.
• Simple beginner sheet: A single flat Gray or Tan fill, applied evenly without shading, is enough to complete this design well.

5 Creative Craft Ideas With Asteroid Coloring Pages

1. Asteroid Belt Model

Color several asteroid pages along with two labeled planet cutouts for Mars and Jupiter, then arrange the asteroids in a line between them to show where the real asteroid belt sits.

2. Mini Deflection Mission Diorama

Color an asteroid page alongside a small paper spacecraft cutout, then set up a simple scene showing the spacecraft approaching the asteroid, inspired by NASA’s real DART mission.

3. Asteroid Fact Poster

Color a large asteroid page and add hand-written facts around it, such as what asteroids are made of, for a simple classroom science poster.

4. Asteroid Bookmark

Color one of the smaller asteroid designs, trim it to a bookmark shape, and add a ribbon or paper tassel through a hole punched at the top.

5. Asteroid Garland

Color multiple asteroid pages, cut around each irregular shape, and string them together with twine for a space-themed room decoration.

Frequently Asked Questions

What are asteroid coloring pages?

Asteroid coloring pages are printable designs that show asteroids in different styles, including realistic cratered rocks, cartoon characters, sketch and doodle art, and a simple beginner sheet. This collection includes 21 pages, each downloadable as a PDF or available to color online.

What is an asteroid, and where do most of them orbit?

An asteroid is a small, rocky object that orbits the sun. Most asteroids are found in the main asteroid belt, a wide band of space between the orbits of Mars and Jupiter.

How old are asteroids?

Most asteroids date back roughly 4.6 billion years, to the early formation of the solar system, made up of material that never came together to form a full planet.

What are asteroids made of?

Asteroids generally fall into three types: dark, carbon-rich C-type asteroids, which are the most common; stony S-type asteroids made of silicate rock and nickel-iron; and shiny, metallic M-type asteroids.

What is the largest known asteroid?

Ceres is the largest known asteroid, measuring roughly 940 kilometers across, and it is large enough to be classified as a dwarf planet rather than a typical asteroid.

How many asteroid coloring pages are in this collection?

This collection includes 21 asteroid coloring pages, split across realistic designs, cartoon and kid-friendly characters, sketch and doodle-style line art, and one simple beginner sheet.

Are asteroid coloring pages suitable for young children?

Yes. The simple beginner sheet and cartoon designs use bold, easy shapes that suit toddlers and preschoolers. The realistic and doodle-style pages, with their cratered texture and irregular edges, suit older children and adults who want more detailed practice.

Can scientists stop an asteroid from hitting Earth?

In 2022, NASA’s DART mission successfully tested this idea by crashing a spacecraft into an asteroid moonlet called Dimorphos, measurably changing its orbit and proving that a spacecraft could one day help redirect a hazardous asteroid away from Earth.

Start Coloring

Download any page by clicking the design. No account, email, or payment is required. Pages print directly from the browser at full resolution or open in the online coloring tool for screen use. Share finished pages on Facebook or Pinterest with the share buttons at the top of each design page.