Barrett's esophagus refers to an abnormal change in the cells of the lower portion of the esophagus. It is characterized by the replacement of the normal stratified squamous epithelium lining of the esophagus by simple columnar epithelium with goblet cells (which are usually found lower in the gastrointestinal tract).
U.S. Space Camp is a camp and related programs owned and operated by the Alabama Space Science Exhibit Commission's U.S. Space & Rocket Center in Huntsville, Alabama.
âMission Control. Space Mountain was a roller coaster attraction located in Tomorrowland at Disneyland at the Disneyland Resort in Anaheim, California. It opened on May 27, 1977, as the second incarnation of the Space Mountain concept, the first version having opened at Walt Disney World's Magic Kingdom in 1975.