In which country is the agency that the Titan Mare Explorer was proposed to part of the federal government?
Titan Mare Explorer:  As a Discovery-class mission it was designed to be cost-capped at US$425 million, not counting launch vehicle funding. NASA: The National Aeronautics and Space Administration (NASA ) is an independent agency of the executive branch of the United States federal government responsible for the civilian space program, as well as aeronautics and aerospace research.
i don't know