At the beginning of time, the Universe was formless energy. This energy transformed into
the richly complex matter of which we and all we touch are made. The Structure and
Evolution of the Universe (SEU) theme within NASA's Office of Space Science seeks to
explore and understand the dynamic transformations of energy in the Universethe entire
web of biological and physical interactions that determine the evolution of our cosmic
habitat. This search for understanding will enrich the human spirit and inspire a new
generation of explorers, scientists, and engineers.
