News
Winter tips for visiting Heureka
The most fun and interesting winter day program is a trip to Heureka! We have interesting and exciting programs for all ages.
Heureka's winter holiday camps 2026
Note! The camps are in Finnish. Are you looking for a winter holiday camp for your child in the Helsinki Metropolitan Area? Heureka is organizing two-day science camps for curious primary school children in week 8. Tickets are on sale until 11.2. 3 pm or until the camps are sold...
Heureka's extended Friday evenings
Heureka's Science Friday starts January 9th! We are open with extended opening hours on Friday evenings until 8pm. Read more about Friday evenings at Heureka on this page.
The renewed planetarium is open
The planetarium has undergone the biggest transformation in its history! Heureka's planetarium is now one of the brightest, most colorful and detailed presentation environments in Europe.
Thursday evening ticket for 10 €
Note! In 2026 the discount does not apply to Thursday evenings 19.2., 26.2., 2.4., 30.4., 14.5., summer season 1.6. - 9.8., 15.10., 24.12. and 31.12.2026. 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.
Photographic Memory Test online
Note! The test in in Finnish. Take Heureka's free and fun photo memory test online. Challenge your visual memory, exercise your brain, and find out how accurately you remember the details of what you see.
NOX evenings for adults
You'll leave Heureka's NOX events smarter than you arrived. Every event has their own theme.