Blast Off! Crochet Adorable Heart Cosmonaut (Free)

ByEmila Lorein

Get ready for an out-of-this-world crochet adventure! Today, we’re sharing a wonderfully cute and creative pattern for a “Heart Cosmonaut” designed by the talented Ekaterina Nikolaeva. This little astronaut, with a heart for an antenna, is the perfect project for amigurumi lovers. It’s a quick make, uses soft plush yarn, and is sure to bring a smile to anyone’s face. Let’s blast off!

Finished crochet heart cosmonaut amigurumi
Your finished Heart Cosmonaut will look this adorable!

Materials and Tools

To create your cosmonaut, you will need the following supplies:

  • Plush Yarn: Himalaya Dolphin Baby (or similar chenille yarn) for the body.
  • Cotton/Semi-Cotton Yarn: YarnArt Jeans (or similar sport/DK weight yarn) for the heart.
  • Crochet Hooks: 4.0mm for the plush yarn and 2.0mm for the semi-cotton yarn.
  • Filler: Holofiber, Poly-fil, or your favorite toy stuffing.
  • Stitch Marker: To keep track of your rounds (optional but recommended).
  • Sewing Essentials: Scissors and a darning needle for sewing parts together.
  • Thin Wire: For the heart antenna.
  • Lighter: To carefully singe the ends of plush yarn to prevent fraying.

Abbreviations (US Crochet Terms)

  • MR: Magic Ring
  • SC: Single Crochet
  • INC: Increase (work 2 sc in the same stitch)
  • DEC: Decrease (sc 2 stitches together)
  • CH: Chain Stitch
  • SL ST: Slip Stitch
  • (…)*X: Repeat the instructions in parentheses X times.
  • (…): The number in parentheses at the end of a round indicates the total stitch count.

Pattern Instructions

Porthole (Spacesuit Window)

Use your 4mm hook and plush yarn. The porthole is worked in an oval shape around a starting chain.

Crocheting the porthole for the cosmonaut
  1. Start with a chain of 6 CH. Beginning in the 2nd chain from the hook, crochet around both sides of the chain: 4 sc, 3 sc in the last chain. Now, working on the opposite side of the chain: 3 sc, inc. (12)
  2. Inc, 3 sc, 3 inc, 3 sc, 2 inc. (18)
  3. Work 18 sc all around, then finish with a sl st.

Cut the yarn, leaving a long tail for sewing. Using white yarn or embroidery floss, stitch a few small “highlights” onto the porthole to make it look like glass.

Backpack

Use your 4mm hook and plush yarn.

Crocheting the backpack for the cosmonaut
  1. Rounds 1-2: Follow the same instructions as the Porthole for Rounds 1 and 2. You will have 18 stitches.
  2. Rounds 3-6: SC in each stitch around for 4 rows. (18)
  3. Round 7: Dec, 3 sc, 3 dec, 3 sc, 2 dec. (12)

Finish with a sl st. Lightly stuff the backpack with filler. Cut the yarn, leaving a long tail, and sew the remaining hole closed. Set aside for assembly.

Legs & Body (All in one piece)

Use your 4mm hook and plush yarn. You will make two legs and then join them to form the body.

The main body of the crochet cosmonaut

First Leg (Make 1)

  1. Round 1: 6 sc in MR. (6)
  2. Round 2: 6 inc. (12)
  3. Rounds 3-5: SC in each stitch around for 3 rows. (12)

Fasten off and cut the yarn on the first leg.

Second Leg & Joining

  1. Make a second leg by following Rounds 1-5 above. Do not cut the yarn this time.
  2. Round 6 (Joining): From the second leg, chain 3. Join with a sl st to the first leg. Now, work around both legs and the chain:
    • 12 sc around the first leg.
    • 3 sc along the chain.
    • 12 sc around the second leg.
    • 3 sc along the other side of the chain. (30)

Tip: Place a stitch marker in the first stitch of the round. This will mark the center of the back.

Body

  1. Rounds 7-16: SC in each stitch around for 10 rows. (30)
  2. Start stuffing the legs and body firmly. Continue to stuff as you go.
  3. Round 17: (3 sc, dec) * 6. (24)
  4. Round 18: SC in each stitch around. (24)
  5. Round 19: (2 sc, dec) * 6. (18)
  6. Round 20: (1 sc, dec) * 6. (12)
  7. Round 21: 6 dec. (6)

Finish with a sl st. Cut the yarn, leaving a tail. Weave the tail through the front loops of the final 6 stitches and pull tight to close the hole. Weave in the end.

Heart

Use your 2mm hook and semi-cotton yarn.

Crocheting the small red heart

First Hump (Make 1)

  1. Round 1: 5 sc in MR. (5)
  2. Round 2: 5 inc. (10)

Fasten off and cut the yarn.

Second Hump & Joining

  1. Make a second hump by following Rounds 1-2. Do not cut the yarn.
  2. Round 3 (Joining): Join to the first hump with a sl st. Now, work 10 sc around the first hump and 10 sc around the second hump. (20)
  3. Rounds 4-5: SC in each stitch around for 2 rows. (20)
  4. Round 6: (2 sc, dec) * 5. (15)
  5. Round 7: (1 sc, dec) * 5. (10)
  6. Lightly stuff the heart with filler.
  7. Round 8: 5 dec. (5)

Finish with a sl st. Cut the yarn, leaving a long tail (about 20cm). Weave the tail through the final stitches and pull to close, but don’t weave in the end yet.

Attaching the Wire

  1. Cut a piece of thin wire to your desired antenna length. Fold it in half.
  2. Insert the folded end into the bottom of the heart. Secure it by sewing it to the top inside of the heart with a separate piece of thread.
  3. Tightly wrap the remaining long yarn tail from the heart down the length of the wire to cover it completely.

Toy Assembly

It’s time to bring your cosmonaut to life!

Assembling the cosmonaut by sewing on the porthole and backpack
  1. Porthole: Using the long tail you left, sew the porthole to the front of the body, positioning it between rounds 12 and 18.
  2. Backpack: Sew the backpack onto the back, centered between rounds 9 and 15.
  3. Heart Antenna: Carefully insert the wire end of the heart into the top of the cosmonaut’s head where you closed the final round. Push it in securely.

You’re All Done!

Congratulations on creating your very own Heart Cosmonaut! We hope you had a blast making this little space explorer.

Happy crocheting message

This pattern was designed by Ekaterina Nikolaeva. You can find more of her wonderful work on Instagram @vse_swyazano.

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