Spacefest was first held in 2007 in Mesa, Arizona, organized by Kim Poor and Sally Poor of Novaspace Galleries. It was created to combine space art with astronaut engagement, and has since expanded to include a wide range of science and public outreach activities.

After the inaugural event, Spacefest was relocated to Tucson, where it has been held regularly at the JW Marriott Starr Pass Resort. Kim Poor remained involved with the event until his death in 2017. The Spacefest activities have continued under the direction of the Poor family.

In 2025 a wonderful Spacefest reunion was organized!