what does it stand for?
National Aeronautics and Space Administration
NASA
The National Aeronautics and Space Administration (NASA; ) is an independent agency of the U.S. Federal Government responsible for the civilian space program, as well as aeronautics and space research.

who is the second person step on moon Buzz Aldrin where was he born? Glen Ridge, New Jersey, United States when? January 20, 1930 which space agency did he work in? NASA
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NASA [SEP] Introduction
The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management for uncrewed NASA launches. NASA science is focused on better understanding Earth through the Earth Observing System; advancing heliophysics through the efforts of the Science Mission Directorate's Heliophysics Research Program; exploring bodies throughout the Solar System with advanced robotic spacecraft such as "New Horizons"; and researching astrophysics topics, such as the Big Bang, through the Great Observatories and associated programs.