Yuri's Night is an international celebration held on April 12 every year to commemorate space exploration milestones. The event is named for the first human to launch into space, Yuri Gagarin, who flew the Vostok 1 spaceship on April 12, 1961. In 2004, people celebrated Yuri's Night in 34 countries in over 75 individual events. Locations have included Los Angeles, Stockholm, Antarctica, the San Francisco Bay Area, Tel Aviv, Tokyo, and the International Space Station.

The goal of Yuri's Night is to increase public interest in space exploration and to inspire a new generation of explorers. Driven by space-inspired artistic expression and culminating in a worldwide network of annual celebrations and educational events, Yuri's Night creates a global community of young people committed to shaping the future of space exploration while developing responsible leaders and innovators with a global perspective. These global events are a showcase for elements of culture that embrace space including music, dance, fashion, and art.^{[citation needed]}