Shera Carlson and Samuel Schreiber were married Dec. 19 at The Woodlands Resort in Houston with a reception following. She is a medical student and the daughter of Rachel and Kenneth Carlson of Arlington, Texas. The bridegroom is a space shuttle flight instructor at Johnson Space Center and the son of Betsy and Carl Schreiber of Glen Head. The bride earned a bachelor of arts degree from Columbia University and is pursuing a medical degree from University of Texas Medical Branch. The bridegroom earned a bachelor of science in aerospace engineering from University of Maryland and a master of aerospace engineering from University of Florida. They live in League City, Texas.