World Space Week is held every year from 4 to 10 October. The 2026 edition has the theme “Rocket Revolution”, announced by the World Space Week Association with support from UNOOSA. The dates recall the launch of Sputnik 1 on 4 October 1957 and the entry into force of the Outer Space Treaty on 10 October 1967.

The programme is decentralised. Schools, museums, observatories, associations and firms can register activities in the international calendar: observations, workshops, exhibitions, debates, online broadcasts. The offer differs from city to city. There is no single timetable.

Astronomy observations depend on the weather. Organisers may move the time or date. Some meetings need a booking or a fee. Before travelling, check the title, place, organiser and status on the official platform, not on a copied poster.

This account does not assign Romania, Bucharest or a named museum an unverified event. The calendar fills as partners register initiatives.

The source is the World Space Week Association and the UN observance. The theme “Rocket Revolution” treats launchers and cheaper access to orbit as an education topic, not a mission forecast.

4–10 October, Sputnik, the 1967 treaty, the 2026 theme. That is enough. No invented local programme.

Image: Unrecognizablepineapple, ASA AZ1500 telescope dome, Abastumani, Georgia, CC0, Wikimedia Commons. Not a 2026 World Space Week event.

Source consulted: World Space Week — World Space Week Association.