Each year, professionals and amateurs alike make significant contributions to the field of astronomy. High school students can also conduct astronomy research. Since 1992, the Radio Astronomy Research Team from Oil City Area Senior High School (OCHS) in Oil City, Pennsylvania, has traveled each year to the National Radio Astronomy Observatory (NRAO) in Green Bank, West Virginia. There, students design and conduct investigations in radio astronomy using the facility's Forty Foot Telescope. In this article, the author discusses a special project entitled "Mapping the Universe" that the team embarked on. Students analyzed data from the Arecibo Radio Telescope in an effort to learn more about distant galaxies. Students used the information they gathered to calculate the Hubble constant--an accomplishment usually only achieved by professional astronomers. Here, he presents a background on the Hubble constant and discusses its relationship to the Mapping the Universe project. (Contains 2 figures.)