Ask-A-Scientist is a Windows to the Universe feature that provides answers to users’ submitted science questions. Users can check out the most recent questions answered on the first page of the Ask-A-Scientist section of Windows to the Universe, search the Ask-A-Scientist Archives to peruse questions on topics such as Earth, the Sun, the Moon, the Solar System, the Universe, physics, and biology, and send their own science questions to the Windows to the Universe scientists. Windows to the Universe is a user-friendly learning system pertaining to the Earth and Space sciences. The objective of this project is to develop an innovative and engaging web site that spans the Earth and Space sciences and includes a rich array of documents, including images, movies, animations, and data sets that explore the Earth and Space sciences and the historical and cultural ties between science, exploration and the human experience.