According to Newton's Laws of Motion, the First Law states that an object will move at a constant momentum until acted upon by an outside force. Therefore if the Golf ball was hit away from the moon's (or any other) gravitational pull, then it should continue to move at constant momentum until a gravitational pull from an object acts upon it.
Alan sheperd was the first astronaut in space.
An astronaut needs a space suit that will allow him or her to stay safe in zero gravity. The astronaut also needs a camera that will record images from outer space.
an astronaut
Astronaut
An astronaut in outer space
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If by mechanics you mean laws of physics, and if you mean outer space as being in outer space far away from gravitational pull, all laws apply aside from gravitational laws.
An astronaut.
yes
An astronaut in outer space
The cast of Astronaut Goes from Migrant Fields to Outer Space - 2010 includes: David Moolten
Even though Hollywood depicts astronauts floating off in outer space in the movie "Gravity", it has never happened.