World Space Week2026 · Date · History · Messages · Quotes
A/RES/54/68
About World Space Week
World Space Week is observed from 4 to 10 October as an international celebration of science and technology and their contribution to the betterment of the human condition.
The United Nations General Assembly proclaimed the week in 1999 following a recommendation arising from UNISPACE III, the Third United Nations Conference on the Exploration and Peaceful Uses of Outer Space.
Why World Space Week matters
Space activities affect everyday life through communications, weather forecasting, navigation, Earth observation, disaster management and scientific research. The week can make those connections visible while also encouraging discussion of international cooperation and responsible space activity.
A strong observance balances excitement about exploration with evidence about engineering, orbital environments, space law, sustainability, access to benefits and the limits of current technology.
History of World Space Week
UNISPACE III met in Vienna from 19 to 30 July 1999. Its Vienna Declaration recommended that the General Assembly declare an annual World Space Week from 4 to 10 October.
On 6 December 1999, the General Assembly adopted Resolution A/RES/54/68 and proclaimed 4–10 October World Space Week.
United Nations space-office material records the first World Space Week in October 2000. The endpoints commemorate the 4 October 1957 launch of Sputnik 1 and the 10 October 1967 entry into force of the Outer Space Treaty.
How the observance developed
This timeline uses documented milestones from reviewed sources. Missing stages are left out rather than guessed.
UNISPACE III and the Vienna Declaration on Space and Human Development
UNISPACE III adopted the Vienna Declaration recommending that the General Assembly establish an annual World Space Week from 4 to 10 October; the General Assembly then proclaimed the week through A/RES/54/68 in December 1999.
Third United Nations Conference on the Exploration and Peaceful Uses of Outer Space (UNISPACE III), through the Vienna Declaration
The Vienna Declaration adopted at UNISPACE III invited the General Assembly to declare 4–10 October each year World Space Week.
United Nations General Assembly
UN General Assembly resolution A/RES/54/68
First documented observance
UNOOSA material records special events celebrating the first World Space Week in October 2000.
United Nations Office for Outer Space Affairs (UNOOSA), with the World Space Week Association
United Nations World Space Week material describes UNOOSA coordination and the role of the World Space Week Association in the global programme.
What the evidence establishes
Confirmed institutional roles and milestones are shown first. Details that could not be established from the reviewed sources are listed separately below.
2 fields not established in reviewed sources
Predecessor and precursor observances
Earlier or merged observances are kept separate from former names and later institutional actions.
How to Observe World Space Week
Attend a public astronomy event or use a reputable sky map to identify visible planets, stars or constellations safely.
Explore how satellite observations support weather forecasting, agriculture, navigation or disaster response in your region.
Run a student engineering activity that explains constraints such as mass, power, communications, radiation or orbital debris instead of treating spacecraft design as unconstrained.
Discuss the Outer Space Treaty and the role of international cooperation using United Nations space-law resources.
Use dark-sky and safe-observation practices, including never looking directly at the Sun without equipment specifically designed for solar viewing.
World Space Week Facts
World Space Week runs from 4 to 10 October.
UNISPACE III recommended creation of the week in 1999.
The UN General Assembly proclaimed it through A/RES/54/68 on 6 December 1999.
The first World Space Week was observed in October 2000.
4 October recalls the launch of Sputnik 1, while 10 October recalls the entry into force of the Outer Space Treaty.
World Space Week Messages
May World Space Week spark fresh ideas, thoughtful conversation and a little more curiosity about the subject behind the day.
World Space Week is a good excuse to slow down, explore the topic and enjoy the people, stories or traditions connected with it.
Wishing everyone marking World Space Week a day filled with curiosity, creativity and meaningful discovery.
Happy World Space Week! May World Space Week invite fresh curiosity about the traditions, ideas and people connected with this occasion.
Celebrate World Space Week by learning something new, sharing what you enjoy and inviting someone else into the experience.
World Space Week Quotes
“The United Nations family strives continuously to utilize the unique benefits of outer space for the betterment of all humankind.”
Topic and context
What this page does not assume
- Keep the source-defined country, community, organizer or institutional scope; do not silently broaden it.
- Do not treat the title alone as proof of government recognition or public-holiday status.
- Do not add a creator, founding story or origin claim unless the supporting evidence establishes it.
Evidence & sources
Sources used across the guide are gathered here. Labels show how each source supports the page, and contextual references are kept separate from primary evidence.
United Nations General Assembly — A/RES/54/68 (opens in a new tab)
United Nations — Report of UNISPACE III / Vienna Declaration on Space and Human Development (opens in a new tab)
United Nations Office for Outer Space Affairs — World Space Week (opens in a new tab)
United Nations — World Space Week (opens in a new tab)
Dedicated Authoritative Page
Understand it, compare it, then explore further
Start with the most common factual questions, then compare closely related observances and explore useful connections.
Frequently asked questions
When is World Space Week?
4–10 October The documented recurrence rule is: 4–10 October.
Does World Space Week fall on the same date every year?
Yes. It uses a fixed annual date unless stronger evidence changes the pattern.
Is World Space Week an official public holiday?
The reviewed sources verify it within this scope: United Nations international week. That recognition does not by itself make it a statutory public holiday; the site only makes public-holiday claims when reliable evidence explicitly does so.
Who established or recognizes World Space Week?
The reviewed sources identify United Nations General Assembly as the proclaiming or establishing body. The proposer or originator is recorded separately as Third United Nations Conference on the Exploration and Peaceful Uses of Outer Space (UNISPACE III), through the Vienna Declaration. Current facilitation or coordination is recorded as United Nations Office for Outer Space Affairs (UNOOSA), with the World Space Week Association.
Is World Space Week international or country-specific?
The documented scope is international or global: United Nations international week. That does not mean every country treats the date as a public holiday or observes it in the same way.
How is this page verified?
The factual information is checked against reviewed sources, including the date pattern, scope and institutional history. This page was checked on 2026-09-05.
When is World Space Week?
It is observed every year from 4 through 10 October.
Who established World Space Week?
The United Nations General Assembly proclaimed it in 1999 after a recommendation from UNISPACE III.
Why does World Space Week run from 4 to 10 October?
The dates connect two milestones: the launch of Sputnik 1 on 4 October 1957 and the entry into force of the Outer Space Treaty on 10 October 1967.