World Space Week 2026 runs Oct. 4-10 with the theme 'Rocket Revolution'

World Space Week, declared by the United Nations, runs October 4 to 10, marking the 1957 launch of Sputnik and the 1967 Outer Space Treaty. This year's theme, "Rocket Revolution," celebrates the growth of reusable rockets and commercial launches. Nearly 50,000 events were held in more than 100 countries last year.