Eight students from Houston were safely rescued after spending four hours stranded on the Iron Shark roller coaster at Texas’ Galveston Island Historic Pleasure Pier. The situation began in the afternoon of May 28, when the coaster suffered a malfunction and came to a halt. According to ABC 7, the trouble began at 5:21 PM when the ride stopped during its initial ascent. The Iron Shark is known for its impressive 100-foot vertical lift hill, and …