Ronald Reagan

Ronald Reagan's tenure as the 40th president of the United States began with his first inauguration on January 20, 1981, and ended on January 20, 1989.

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In 1988, Ronald Reagan approved a space policy to lead a return to the moon and manned flights to Mars. It granted permission for a program to develop 'pathfinder' technologies necessary for a return to the moon by the end of the century and for manned flights to Mars in early 21st century