Summer opening hours 23.6.–10.8.2025
If you're looking for a quieter time for your summer visit, it's a good idea to arrive first thing in the morning or alternatively in the afternoon. However, please remember that ticket sales end one hour before closing time on the day.
Opening hours during the summer season 23.6.–10.8.
Mon–Fri 9 am–6 pm and Sat–Sun 10 am–6 pm.
Tips for your summer 2025 Heureka visit:
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Science outdoors
Heureka's exhibitions continue outdoors during the summer! Galilei Science Park is only open during the summer, and is included in the price of the day's Heureka ticket. The outdoor exhibition area includes, among other things, the popular human yo-yo and various water attractions.
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Heureka's beloved pet rats
In the rat feeding show, an inspirer tells about the rats' behaviour, feeding and everyday life at Heureka Rottala.
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When hunger strikes
The Science Restaurant's delicious lunch and small sweet and savory snacks will ensure that you have enough energy throughout the entire Heureka day! An ice cream kiosk is also open outside Heureka throughout the summer.
Everything with one ticket
You should reserve 2-4 hours for a visit to Heureka, as we have plenty to do! Check out all our exhibitions below.
Exhibitions
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Giants of the Ice Age
8.2.2025–6.9.2026
Nearly twenty life-size animal robots await visitors at the Giants of the Ice Age exhibition - including a mammoth and a saber-toothed cat!
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Our Journey in Space
10.2.2024-6.1.2027
Our Journey in Space is an interactive science center exhibition for the whole family
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Different Eyes
May 15, 2025–January 6, 2026
Two Centuries of Braille anniversary exhibition. We live in a world that emphasises visual information – but what if our eyes cannot see? The exhibition was curated in collaboration with the Finnish Federation of the Visually Impaired.
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Fibrations
10.6.2025–6.1.2026
The exhibition showcases student works of the Aalto University interdisciplinary course Crystal Flowers in Halls of Mirrors: Mathematics Meets Art and Architecture.
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Water - The stream of Life
Opening 4.10.2025
Water - The Stream of Life exhibition will open 4.10.2025. The exhibition is suitable for people of all ages and backgrounds, to children and to adults, as well as the curious and those who like to delve deeper.
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Exhibitions Outdoors
Open until 28.9.2025.
At Science Park Galilei you can try out large-scale objects based on music, mathematics and physics phenomena.
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Artificial Intelligence – Me, Myself & AI
Welcome to the village of the Scientist's home full of artificial intelligence! Can you beat the robot in rock-paper-scissors?
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Heureka Classics
Experience classic destinations with the whole family together! Heureka classics Charm year after year.
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Electri City
Delve into smart electricity in your everyday life! What is a smart home like and how can you yourself use electricity intelligently?
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Circular Factory
Circular Factory is an exhibition of sustainable development solutions. How can familiar objects be recycled as efficiently as possible?
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The Idea Workshop
In the challenges of the idea shop, you can aim for style, speed or, for example, slowness.
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Science on a Sphere
The Science on a Ball site presents data collected by satellites about climate and space, among other things.
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Main Exhibition Area
In the main exhibition area, a few old favorites are on display, such as the wire wheel and Foucault's pendulum.
Amazing audience performances
A visit to Heureka also includes various public performances, such as rat feeding shows, science shows and laboratory experiments. The performances and times for the day of your visit can be seen on the website calendar.
Heureka is a safe space
Everyone has the right to feel safe at Heureka.
When I am at Heureka,
I follow these principles for a safe space.
Bring science home from Heureka Shop
You can find the best and most insightful science gifts for all summer parties at Heureka Shop.
Currently at Heureka
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Heureka's tips for autumn
A colourful autumn at Heureka! Check out our best tips for what to do on an autumn day 2025.
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NOX evening 29.8.2025 (K18)
The next NOX evening for adults will be held 29.8.2025 at 18–22, with the theme of climate change. Tickets 10€. You can also attend the event with the Museum card or Heureka Club card. Remember to buy or reserve your place in advance!
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Heureka's autumn holiday camps 2025
Heureka organizes two-day science and space camps for curious children in week 42. The camps are perfect for elementary school children who are hungry for knowledge and are enthusiastic about science experiments. Note! The camps are in Finnish. Tickets go on sale 15.9.2025 at 10am.
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The Planetarium is closed
We will open a fully renovated and state-of-the-art Planetarium in late 2025.
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Hearing test
As we age, our hearing deteriorates. Many people only realize this when they notice that they can no longer hear the chirping of crickets in the summer. Children can hear sounds with frequencies up to 20 kilohertz, but few 18-year-olds can hear sounds above 17.5 kHz. Why don't we find...
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Thursday evening ticket for 10 €
Note! The discount does not apply to Thursday evenings during summer season 23.6.–10.8., 16.10. and 25.12. On Thursdays from 15:00–20:00, all entrance tickets are 10 €/each. Children under 5 years of age can enter Heureka free of charge accompanied by a guardian.
