January 27

1921 – Albert Einstein suggested the possibility of measuring the universe with his address "Geometry and Expansion," at the Prussian Academy of Sciences in Berlin.

1940 – Actor James Cromwell (Zefram Cochrane) is born.

1967 – More than sixty nations sign the Outer Space Treaty banning nuclear weapons in space.

Fun Fact:

The moon is getting farther away from the Earth - about 1.48 inches per year.