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.
1 The 1986 film SpaceCamp mentions White Plains as a possible landing site for the space shuttle; the characters soon realize that the landing site they're thinking of is the White Sands Missile Range in New Mexico, and not the airport (which is far too small to handle a shuttle landing).