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Cheonan Hong Dae-yong Science Museum

A children's astronomy center where you can experience zero gravity

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Popular to boys from 24 to 48 months

Updated at 05/04/2026

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  • Address

    Cheonan Hong Dae-yong Science Museum, 113, Jangsanseo-gil, Susin-myeon, Dongnam-gu, Cheonan-si, Chungcheongnam-do, Republic of Korea

  • Contact

    041-564-0113

  • Facilities

    Nursing room, Diaper changing table, Parking, Reservation

  • Reservation

    Both advance reservation and same-day visits are available - reserve on the homepage

  • Open/Closes

    MonRegular closed day
    Tue10:00 ~ 18:00
    Wed10:00 ~ 18:00
    Thu10:00 ~ 18:00
    Fri10:00 ~ 18:00
    Sat10:00 ~ 18:00
    Sun10:00 ~ 18:00

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Popular Ages of Cheonan Hong Dae-yong Science Museum

Cheonan Hong Dae-yong Science Museum is
popular to from 24 to 48 months boys

under 12 months

from 12 to 24 months

from 24 to 48 months

over 48 months

  • boys

    53%

  • girls

    47%

Prices & Programs of Cheonan Hong Dae-yong Science Museum

  • [Fees]
  • Admission (adult): 3,000 won
  • Admission (elementary school student): 1,500 won
  • Planetarium (adult): 2,000 won
  • Planetarium (elementary school student): 1,000 won
  • Observatory (adult): 3,000 won
  • Observatory (elementary school student): 1,500 won
  • Preschool children, ages 65 and older: free
  • Please check the attached image for detailed options and fees.
  • [Visitor Information]
  • Permanent Exhibition Hall: 10:00-18:00
  • Planetarium: 10:00-18:00
  • Observatory: 15:00-22:00
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Parenting Tips for Cheonan Hong Dae-yong Science Museum

  • This science museum opened in 2014 near the birthplace of Teacher Damheon to honor the achievements of Teacher Damheon Hong Dae-yong, a scientific thinker and silhak scholar of the Joseon Dynasty.
  • You can enjoy experiences such as rubbing art, centrifugal force bicycle rides, and zero-gravity experiences, as well as space geology exploration and space games.
  • At the 1st-floor planetarium, you can experience space through videos projected onto a hemispherical dome showing various phenomena that occur in space. The theme differs by time slot, so it is best to check the video you want and visit at the right time.
  • The 4th-floor observatory has a hallway designed like outer space, which children find fascinating.
  • In the outdoor yard, you can see observational instruments used by our ancestors in the past.
  • There is a trick art photo zone where you can take vivid photos that look as if you are in space.
  • The planetarium is open to children from 48 months, and preschool children must be accompanied by a guardian.
  • In the 1st-floor lobby, there are science books and chairs, so you can relax while reading.
  • Rather than for very young children, it is a great place for children ages 6 or 7 and older to enjoy.
  • Please note that each experience has different session times and eligible ages.
  • The night observation program requires online reservation through the homepage.
  • Preschool children and ages 65 and older receive free admission.
  • There is also a nursing room on the 1st floor, and a water purifier is available.
  • Sono Belle Cheonan guests can receive a 50% discount on admission. You can show your Sono Belle reservation details at the information desk.
  • You can park for free in the parking lot in front of the building.

Cheonan Hong Dae-yong Science Museum

If your child loves space, this hands-on science museum is the kind of place where half a day flies by. With interactive programs like a zero-gravity experience, a centrifugal force bicycle, and a planetarium, there is plenty to see and feel firsthand, making it especially fun for children ages 6 to 7 and up.

Fun points to enjoy with your child

  • In the permanent exhibition hall, you can try a variety of activities such as space geology exploration, space games, and rubbing art experiences.
  • The planetarium on the 1st floor uses a hemispheric dome screen to vividly show space phenomena.
  • The observatory on the 4th floor, the space-themed hallway, and the trick art photo zone are also favorite spots for kids.

Kid-friendly amenities

  • On the 1st floor, there is a nursing room and a diaper changing station, making visits with babies and toddlers more convenient.
  • Parking is available.
  • There is no stroller rental or high chair, so it is best to prepare what you need in advance.

Check before you visit

  • The planetarium is open to children from 48 months, and preschool children must be accompanied by a guardian.
  • The observatory operates from 15:00 to 22:00, and the nighttime observation program is available by reservation.
  • Preschool children and visitors ages 65 and older receive free admission.
  • Sono Belle Cheonan guests can receive a 50% discount on admission.

"If you want to help your child discover space in a closer and more fascinating way, this is definitely worth a visit."

FAQ about Cheonan Hong Dae-yong Science Museum

  • What age is Cheonan Hong Dae-yong Science Museum best for?
    Because there are many hands-on activities, it is usually especially enjoyable for children ages 6 to 7 and up. Preschool children can also visit, and the planetarium is open from 48 months.
  • Can children enter the planetarium at Cheonan Hong Dae-yong Science Museum?
    Yes, the planetarium is open from 48 months. Preschool children must be accompanied by a guardian, so you will need to enter together.
  • What activities can children enjoy at Cheonan Hong Dae-yong Science Museum?
    Children can enjoy a zero-gravity experience, a centrifugal force bicycle experience, rubbing art, space geology exploration, and space games. In the outdoor yard, you can also see old astronomical observation instruments, and the trick art photo zone is a great spot for pictures.
  • Does Cheonan Hong Dae-yong Science Museum have a nursing room or diaper changing station?
    Yes, there is a nursing room and a diaper changing station on the 1st floor, so it is convenient for visits with babies and toddlers. There is also a water purifier on the 1st floor.
  • What are the opening hours and closing day for Cheonan Hong Dae-yong Science Museum?
    It is open from 10:00 to 18:00, Tuesday through Sunday, and regularly closed on Mondays. The observatory operates separately from 15:00 to 22:00.
  • How can I use the observatory and nighttime observation program at Cheonan Hong Dae-yong Science Museum?
    The observatory operates from 15:00 to 22:00. The nighttime observation program requires online reservation through the website.
  • How much is admission to Cheonan Hong Dae-yong Science Museum?
    Admission is 3,000 won for adults and 1,500 won for elementary school students. The planetarium is 2,000 won for adults and 1,000 won for elementary school students, and the observatory is 3,000 won for adults and 1,500 won for elementary school students. Preschool children are free.
  • Is parking free at Cheonan Hong Dae-yong Science Museum?
    Yes, you can use the parking lot in front of the building free of charge. It is generally easy to access if you are visiting by car.
  • Is Cheonan Hong Dae-yong Science Museum stroller-friendly?
    There is no stroller rental service, so you will need to bring your own if needed. It is good to know in advance that stroller rental is not available on-site.

Cheonan Hong Dae-yong Science Museum Address

Address: Cheonan Hong Dae-yong Science Museum, 113, Jangsanseo-gil, Susin-myeon, Dongnam-gu, Cheonan-si, Chungcheongnam-do, Republic of Koreaicon-copy-black

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How to make a reservation for Cheonan Hong Dae-yong Science Museum?

Both advance reservation and same-day visits are available - reserve on the homepage