Cranbrook Institute of Science does not allow peanuts, tree nuts, or nut butter in the museum. We request that you please refrain from bringing these items, or items made with these ingredients, into the museum. We appreciate your cooperation and apologize for any inconvenience.

Pre-registration is no longer required to visit the Institute of Science. However, you will still need to pre-register for Free First Friday. We are currently open to the public Wednesday through Sunday. Your health and safety are of the utmost importance to the Institute of Science, we appreciate your cooperation with the following:

  • Face coverings are required for all guests aged three and older for the duration of their visit.
  • We encourage children under age three, who are not wearing a face covering, remain in a stroller or carrier for the duration of their visit.
  • We encourage guests to be respectful of the other people around them, and be mindful of each other’s space.
  • Hand sanitizing stations are available at the museum entrance and high-contact areas.

Thank you for your interest in registering for our upcoming December Free First Friday. Due to the popularity of this event, all time slots for Friday, December 3rd, 2021 are SOLD OUT.

Erb Family Science Garden

The Erb Family Science Garden remains closed at this time. Please check this page and our social channels for updates as they become available.


exploreLAB remains closed at this time. Please check this page and our social channels for updates as they become available.

Cranbrook Observatory

The observatory is open every Friday from 8:30 - 10pm during daylight savings and 7:30 - 10pm during standard time, weather permitting. It is also open on the first Sunday of the month from 1:00 - 4:00pm for safe viewing of the sun, weather permitting.

For more information about the Cranbrook Observatory, please check here.

The Cranbrook Observatory is FREE with admission to the Institute.

Acheson Planetarium

The Acheson Planetarium is open with limited capacity.
Tickets are available for purchase at the front desk upon your arrival at the Institute of Science on a first-come, first-serve basis.

Learn More

Seasonal & Special Events

Acheson Planetarium

Public Planetarium Programs
Permanent Exhibits

The museum's exhibitions are housed in 14 permanent galleries. There is also a changing exhibition hall, an outdoor science garden, nature trails, a state-of-the-art planetarium, an observatory and an interactive fossil prep area known as exploreLAB. The major overarching theme to the exhibitions is the interconnectedness in nature. This idea is introduced to visitors in a unique, multi-media theater called the Connections Theater.