On the southern coast of Barbados, a massive steel tube nearly 36 meters long—about the height of a ten-story building—still stands upright, pointing toward the sky. Despite decades of neglect, the structure remains intact, though vegetation is slowly creeping into its foundations. This relic is a remnant of the HARP (High Altitude Research Project), a now-forgotten initiative from the 1960s that aimed to explore space using a giant cannon rather than rockets. The project was a collaboration between Canada and the United States, led by Gerald Bull, a ballistic engineer with a complicated history involving various governments. The cannon was constructed by welding together two recovered naval guns and was designed to launch projectiles into space using gunpowder instead of traditional rocket fuel. In 1966, the project achieved a major milestone by sending a projectile to an altitude of 180 kilometers—well above the Kármán line, which is generally accepted as the edge of space at 100 kilometers. Despite this success, the HARP project is not widely known today, overshadowed by the more prominent development of rocket-based space travel. The project was abandoned in 1967 due to a combination of geopolitical concerns and financial difficulties. Governments were worried about the potential military applications of the technology, and funding for the project declined as international tensions increased. The cannon was left in place, not because of a lack of interest, but because moving it would have been too costly and logistically challenging at the time. Gerald Bull, who later became known for his controversial work with other governments, was assassinated in 1990 under mysterious circumstances. Today, the cannon is a rusted, overgrown curiosity, drawing only a few curious visitors. However, its legacy continues to spark interest among engineers and scientists. Some researchers are exploring the idea of using large cannons to launch lightweight satellites into space as a potentially more cost-effective alternative to traditional rockets. Though abandoned in its time, the HARP project remains a testament to an unconventional and ambitious approach to space exploration that may yet find relevance in the future.